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combining like terms directions: simplify each expression by combining …

Question

combining like terms
directions: simplify each expression by combining like terms.
#1 -7 + 13x + 2x + 8
#2 9 + 7y - 2 - 5y
#3 2 + 3x - 4x + 6
#4 5 + 2x + 2
#5 2(4x - 1) + x
#6 6x + 2(x + 4)
#7 3(x + 5) - 10
#8 15x - (x - 4)

Explanation:

Response
#1

Step1: Group like terms

\(-7 + 8 + 13x + 2x\)

Step2: Combine constant terms and x - terms

\((-7 + 8) + (13x + 2x) = 1 + 15x\)

Step1: Group like terms

\(9 - 2 + 7y - 5y\)

Step2: Combine constant terms and y - terms

\((9 - 2) + (7y - 5y) = 7 + 2y\)

Step1: Group like terms

\(2 + 6 + 3x - 4x\)

Step2: Combine constant terms and x - terms

\((2 + 6) + (3x - 4x) = 8 - x\)

Answer:

\(15x + 1\)

#2