Add and Subtract One-Step Algebraic Expressions

What would be the first step to solving the following equation? -12 + j = 90

• Subtract 90 from both sides

• Add 12 on both sides

• Subtract 12 on both sides

• Divide both sides by -12

What is the FIRST step in solving the following equation?

-15 = -10 + 5w

• Subtract 5 from both sides

• add 10 to both sides

• subtract 10 from both sides

• add 15 to both sides

• Divide by 5 on both sides

9 + g = 12

• g = 3

• g = 21

• g = -3

• g = 4/3

What do you call the number being multiplied by the variable (the number in front of a variable)?

• Constant

• Coefficient

• Variable

• Equation

• Expression

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

• -2a + 6

• 2a + 6

• -2a + 2

• 2a + 2

Find the difference (2x + 5) − (x + 4).

• x + 1

• 3x + 9

• −x + 1

• x + 9

(6x + 3y + 4) – (8x + 9y)

• -2x - 6y

• -2x - 6y + 4

• 2x + 6y + 4

• 14x + 12y + 4

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

• 6x + 8

• 16x + 21

• 56x + 8

• 16x + 8

(-11a + 7) – (11a – 7)

• -22a - 14

• 0

• -22a + 14

• -22a

Find the difference (2x + 5) − (x + 4).

• x + 1

• 3x + 9

• −x + 1

• x + 9