1.1 - 1.3 Review

Combine Like Terms

100

Simplify: 3x+5x

What is 8x?

200

Simplify: 7x+3−2x+5

What is 5x+8?

300

Simplify: 4x+2y−3x+5y

What is x+7y?

400

Simplify: 3(2x+1)+4x−5

What is 10x-2?

500

Simplify: 4(2x−3)−3(x+2)

What is 5x-18?

Distribute It!

100

Simplify: 3(x+4)

What is 3x+12?

200

Simplify: -2(x+5)

What is -2x-10?

300

Simplify: 5(2x-3)+4

What is 10x-11?

400

Simplify: -3(2x-4)+5x

What is -x+12?

500

Simplify: -2(3x-5)+4(x-1)

What is -2x+6?

Solve the Equation

100

Solve: x+7=12

x=5

200

Solve: 3x=18

x=6

300

Solve: 4x-7=17

x=6

400

Solve: 5x+3=2x+18

x=5

500

Solve: 4(x-2)+3=2x+9

x=7

Inequalities

100

Write x ≥ 4 in words.

x is greater than or equal to 4

200

Write x < 3 in interval notation

 (-∞,3)

300

Write [-2,5) as a compound inequality.

-2 ≤ x < 5

400

Solve 3x-5 > 10. Give the answer in inequality AND interval notation.

x > 5; (5,∞)

500

Write (-∞,-2]∪(4,∞) as an inequality.

x ≤ -2 or x > 4

Find the Mistake

100

Find the mistake: 2x+3x=6x

2x + 3x = 5x

200

Find the mistake: 3(x+2)=3x+2

Distribute to both terms: 3x+6

300

Find the mistake: 4x-5=11

                           4x=6

Add 5, giving 4x=16

400

Find the mistake: -3x>12

                            x>-4

Flip the inequality: x<-4

500

Find the mistake: 2(x+3)-4=10

                             2x+3-4=10

Distribute 2 to both terms: 2x+6-4=10