spicytaco spicytaco

24-03-2015
Mathematics

contestada

help
What is the solution to the equation?

5(8 + 7) = 5 • x + 5 • 7

A.
x = 1

B.
x = 5

C.
x = 7

D.
x = 8

Respuesta :

konrad509 konrad509

24-03-2015

[tex]5(8+7)=5\cdot x+5\cdot7\\ 5\cdot15=5x+35\\ 75=5x+35\\ 5x=40\\ x=8 \Rightarrow D[/tex]

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