Question

Find the value of x. The diagram is not to scale.
a)x=60
b)x=21
c)x=15
d)none of these

Answer 1

5x-30+5x=180
Do you know how to solve for x?

Answer 2

no

Answer 3

Okay.
5x-30+5x=180
First we combine like terms
10x-30=180
Now add 30 on both sides.
10x=210
Divide by 10 on both sides
x=21
Plug it back in to see if that's right
10(21)-30=180
(210)-30=180
180=180
That's correct!

Answer 4

SO b.