Making a subject of a formula

IR = V
(solve for R) 

• R = IV
• R = ^I/_V
• R = ^V/_I
• R = V - I

Tags

CCSS.HSA.CED.A.4

Make 'x' the subject of the formula:

• x = yb - v

• x = by - v

• x = by + v

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

• x = (f + e)/d
• x = (f - e)/d
• x = d/(e - f)
• x = d/(e + f)

Tags

CCSS.HSA.REI.B.3

• T = PV/K
• T = PK/V
• T=KV/P
• Greenland

Tags

CCSS.HSA.CED.A.4

In A=5ab, make [b] the subject of the formula

• b=A/5a

• b=5Aab

• b=5Ab

• b=5a/A

ax+r=7
solve for r

• r=7/ax
• r=7-ax
• r=7+ax
• r=7ax

Tags

CCSS.HSA.REI.B.3

Solve for x:

• x = yb - v
• x = by - v
• x = by + v

Solve: 7^-x = 49

• x = 1
• x = -1
• x = 2
• x = -2

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

Solve: 2^x = 4^x+1

• -2
• 2
• -3
• 3

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSF.BF.B.5

CCSS.HSF.LE.A.4

Solve for x using the same base method.
3^x-20 = 27

• 17
• 27
• -7
• 23

Tags

CCSS.HSA.CED.A.1

CCSS.HSF.BF.B.5

CCSS.HSF.LE.A.4