Question

Three times a number minus ten is equal to the sum of twice the same number and five. The equation below represents the situation.

3 x minus 10 = 2 x + 5 What is the value of x?
–5
–1
3
15

Answer 1

15

Explanation:

Answer 2

Explanation:

3x - 10 = 2x + 5

Add 10 to both sides

3x - 10 + 10 = 2x + 5 + 10

3x = 2x +15

Subtract 2x from both sides

3x - 2x = 2x + 15 - 2x

x = 15