Question

What is the solution to the equation 3(2x+5) = 3х+4x?

Answer 1

x = 15

Explanation:

Given

3(2x + 5) = 3x + 4x ← collect like terms

3(2x + 5) = 7x ← distribute parenthesis on left side by 3

6x + 15 = 7x ( subtract 6x from both sides )

15 = x ⇒ x = 15

Answer 2

`3(2x+5) = 3x+4x\\6x+15=7x\\x=15`