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Warm up: 9.25.20 solving for x

Authored by Anonymous Anonymous

Mathematics

10th - 11th Grade

Warm up: 9.25.20 solving for x
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3 questions

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1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

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What are the steps for solving for x?

On both sides of the equation first subtract six, then divide by three, and finally subtract one.

On both sides of the equation first divide by 3, then subtract six, and finally subtract one.

On both sides of the equation first subtract one, then subtract six, and finally divide by three.

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

If we are given

 2(x1)+5=9-2\left(x-1\right)+5=-9 which is the correct way to solve for x? 

-2(x-1)+5=-9

-2(x-1)=-14
x-1=7
x=8

-2(x-1)+5=-9

-2(x-1)=-13
x-1=11
x=12

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Where did i make the first mistake when solving for x?

step(1) -7=-2(x+5)-1
step(2) -6=-2((x+5)
step(3) -4=x+5
step(4) -9=x 

step 3

step 1

step 2

step 4

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