Grade 7 - Ch. 4 Expressions

Simplify by combining like terms: 7v - 2 + 12 + 2v

• 23

• 23v

• 9 + 14v

• 9v + 10

Simplify

4x + 2(x - 1)

• 6x - 2

• 4x + 2x - 2

• 6x - 1

• 8x + 2x - 2

Factor

5x + 35

• 5

• (x + 7)

• 5(x + 7)

• 5(x + 30)

Factor out the greatest common factor (GCF).

6x + 12

• 3(2x + 4)

• 6(x+2)

• 6x(x+2)

• 1/2 (3x + 24)

When you are adding two numbers with a different sign, what do you do?

• add the numbers and take the sign of the larger number

• subtract the numbers and take the sign of the larger number

• add the numbers and take the sign of the lower number

• subtract the numbers and take the sign of the lower number

When you are adding two numbers with the same sign, what do you do?

• add the numbers and keep the sign

• subtract the numbers and keep the sign

• add the numbers and use the opposite sign

• subtract the numbers and use the opposite sign

Simplify:

-2(x + 5)

• -2x + 10

• -2x - 10

• -2x + 5

• -2x - 5

Subtract the expressions:

(7a + 4) - (9a + 2)

• -2a + 6

• 16a + 6

• -2a + 2

• 2a + 2

Subtract the expressions:

(2x + 5) − (x + 4).

• x + 1

• 3x + 9

• −x + 1

• x + 9

2(2x + 3) + 3(4x + 5)

• 6x + 8

• 16x + 21

• 56x + 8

• 16x + 8