a x + r = 7 S o l v e f o r r . ax+r\ =\ 7\ \ Solve\ for\ r. a x + r = 7 S o l v e f o r r .

r = 7 a x r=\frac{7}{ax} r = a x 7

8 x + 4 y = 16 8x+4y=16 8 x + 4 y = 1 6 Solve for y:

y = − 2 x + 4 y=-2x+4 y = − 2 x + 4

y = − 8 x + 16 y=-8x+16 y = − 8 x + 1 6

y = 2 x − 4 y=2x-4 y = 2 x − 4

y = − 8 x + 12 y=-8x+12 y = − 8 x + 1 2

CHANGING THE SUBJECT

Authored by Claudia Emiliani

Mathematics

8th Grade

CCSS covered

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12 questions

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MULTIPLE CHOICE QUESTION

2 mins • 1 pt

$ax+r\ =\ 7\ \ Solve\ for\ r.$

$r=\frac{7}{ax}$

$r=7-ax$

$r=7+ax$

$r=7ax$

Tags

CCSS.HSA.CED.A.4

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

$p=\frac{w}{a}$ Solve for w.

$w=pa$

$w=\frac{p}{a}$

$w=\frac{a}{p}$

$w=p+a$ I

Tags

CCSS.HSA.CED.A.4

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Solve for a.

$a=pw$

$a=\frac{p}{w}$

$a=\frac{w}{p}$

$a=w+p$

Tags

CCSS.HSA.CED.A.4

CCSS.HSA.REI.B.3

CCSS.HSA.REI.A.1

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

$8x+4y=16$

Solve for y:

$y=-8x+16$

$y=2x-4$

$y=-2x+4$

$y=-8x+12$

Tags

CCSS.6.EE.C.9

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

$IR=V$ $Solve\ for\ R$

$R=IV$

$R=\frac{I}{V}$

$R=\frac{V}{I}$

$R=V-I$

Tags

CCSS.HSA.CED.A.4

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Solve for x:

x = yb - v

x = by - v

x = by + v

Tags

CCSS.HSA.CED.A.4

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

$dx+e=f$
Which expression represents the value of x in the equation:

$x=\frac{f+e}{d}$

$x=\frac{f-e}{d}$

$x=\frac{d}{e-f}$

$x=\frac{d}{e+f}$

Tags

CCSS.HSA.REI.B.3

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

$T=\frac{PV}{K}$

$T=\frac{PK}{V}$

$T=\frac{KV}{P}$

$T+P=PV$

Tags

CCSS.HSA.CED.A.4

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Solve the literal equation for the given variable.

$\frac{2A}{h}$

$\frac{2}{h}$

$2Ah$

$\frac{Ah}{2}$

Tags

CCSS.HSA.CED.A.4

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CHANGING THE SUBJECT

ax+r = 7 Solve for r.ax+r\ =\ 7\ \ Solve\ for\ r.ax+r = 7 Solve for r.

p=wap=\frac{w}{a}p=aw​ Solve for w.

Solve for a.

8x+4y=168x+4y=168x+4y=16 Solve for y:

IR=VIR=VIR=V Solve for RSolve\ for\ RSolve for R

Solve for x:

dx+e=fdx+e=fdx+e=f Which expression represents the value of x in the equation:

Solve the literal equation for the given variable.

Solve for 'a' if: a = 2(3 + 6)

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$ax+r\ =\ 7\ \ Solve\ for\ r.$

$p=\frac{w}{a}$ Solve for w.

$8x+4y=16$

Solve for y:

$IR=V$ $Solve\ for\ R$

$dx+e=f$
Which expression represents the value of x in the equation:

Solve for 'a' if:

a = 2(3 + 6)