What is the solution to the equation?

7(5 + 9) = 7 · x + 7 · 9
A. x = 1
B. x = 5
C. x = 7
D. x = 9

@iGreen @iGreen. @sleepyjess

Question

What is the solution to the equation?

7(5 + 9) = 7 · x + 7 · 9
  A. x = 1
  B. x = 5
  C. x = 7
  D. x = 9
 
@iGreen @iGreen. @sleepyjess

sleepyjess · Answer

Substitute in the options for x and see which one works out.

dtan5457 · Answer

Well the first part of the equation 7(5+9)=98.

For the 2nd part, 7 times 9 is 63, 

98-63=35

7 times what is 35?

sleepyjess · Answer

OR
7(5+9)=7*5+7*9
35+63=7*x+7*9
98=7x+63

dtan5457 · Answer

In case you want to check your answer it would be  B. x = 5

anonymous · Answer

7*9 from both sides cancels out and simply 7x=7*5 or x=5