Question

Given : 2x+8=5x-13; prove x=7

Answer 1

Explanation:

If we want to prove that x is equal to seven, we should first solve the equation for x so:

2x + 8 = 5x - 13

We should first add 13 on both sides and subtract 2x from both sides:

2x + 8 + 13 - 2x = 5x - 13 + 13 - 2x

21 = 3x

We can then divide both sides by 3 to get:

x = 7

Answer 2

True

Explanation:

The left side 22 is equal to the right side 22 , which means that the given statement is always true.