Simplifying 9x + -2x + -28 = 14 Reorder the terms: -28 + 9x + -2x = 14 Combine like terms: 9x + -2x = 7x -28 + 7x = 14 Solving -28 + 7x = 14 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '28' to each side of the equation. -28 + 28 + 7x = 14 + 28 Combine like terms: -28 + 28 = 0 0 + 7x = 14 + 28 7x = 14 + 28 Combine like terms: 14 + 28 = 42 7x = 42 Divide each side by '7'. x = 6 Simplifying x = 6. Hope this helps