Question

What is the solution to the equation?

4(3 + 7) = 4 • x + 4 • 7

A.
x = 3

B.
x = 4

C.
x = 7

D.
x = 10

Answer 1

Hello,

answer A: x=3

4(3+7)=4x+4*7
==>4*10=4(x+7)
==>x+7=10
==>x=10-7
==>x=3