Question

(3x+15)(2x+45)=180 find value of x​

Answer 1

Simplifying

3x + -15 + 2x + -30 = 180

Reorder the terms:

-15 + -30 + 3x + 2x = 180

Combine like terms: -15 + -30 = -45

-45 + 3x + 2x = 180

Combine like terms: 3x + 2x = 5x

-45 + 5x = 180

Solving

-45 + 5x = 180

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '45' to each side of the equation.

-45 + 45 + 5x = 180 + 45

Combine like terms: -45 + 45 = 0

0 + 5x = 180 + 45

5x = 180 + 45

Combine like terms: 180 + 45 = 225

5x = 225

Divide each side by '5'.

x = 45

Simplifying

x = 45