one step equations add/subtract

One Step Equations (add/subtract)

goal: isolate variable

steps:

1. locate variable

2. determine operation

3. perform opposite/ inverse operation to get variable by itself (do it on BOTH sides)

Multiple Choice

Inverse/oppostive operation of addition is....

• subtraction

• multiplication

• division

Multiple Choice

To solve an equation

X+6=13 you need to....

• add 6 on both sides

• subtract 6 on BOTH sides

• subtract 6 on ONE side

Multiple Choice

To solve equation 10=x-9, you need to...

• subtract 10 on both sides

• add 9 on both sides

• subtract 9 on both sides

Multiple Choice

solve equation

x-5=-12

• x=-7

• x=7

• x=17

Multiple Select

in equation y+2=10, y =8.

Is it true or false?

• true

• false

Multiple Choice

solve the following equation:

14+a=17

• a=-3

• a=3

• a=14

Multiple Choice

solve:

-30=y-10

• y=20

• y=-20

• y=40

Multiple Choice

solve

43=x-10

• x=53

• x=33

• x=-53

Multiple Choice

50=y+25

• y=75

• y=50

• y=25

Poll

to solve equation w-5=-30, you need to subtract 5 from both sides

• true

• false

Open Ended

solve the following equation: x-3=23, type your answer x=...

Multiple Choice

solve:

7=w-20

• w=13

• w=20

• w=27

Multiple Select

In equation 8=x-9, x=....

• x=17

• x=-1

• x=1