Question

Help plz:

11. Solve the following equations:
a. 5(x - 4) = 10
b. 2x(4x + 3x) = 21
c. 3(4 - 2x) = 28
d. 10x(2 + 13) = 300

Answer 1

A is 10

B is 14

C is 6

I can't figure out D.

This is the best I got.

Answer 2

a ) x is 6

b ) x is 1.5

c ) x is 16/6

d ) x is 2