7x-9 +4x+22=90find X

Answer:X = 7Step-by-step explanation:Simplifying 7x + -9 + 4x + 22 = 90 Reorder the terms: -9 + 22 + 7x + 4x = 90 Combine like terms: -9 + 22 = 13 13 + 7x + 4x = 90 Combine like terms: 7x + 4x = 11x 13 + 11x = 90 Solving 13 + 11x = 90 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-13' to each side of the equation. 13 + -13 + 11x = 90 + -13 Combine like terms: 13 + -13 = 0 0 + 11x = 90 + -13 11x = 90 + -13 Combine like terms: 90 + -13 = 77 11x = 77 Divide each side by '11'. x = 7 Simplifying x = 7