To solve for this, we need to get x on one side and then simplify if needed. Our current equation is: x + 140 -15x = x + 147. Combine like terms on the left side of the equation. -15x + x = 14x. Our new equation is: -14x + 140 = x + 147. Subtract 1x from both sides to get x on one side. -14x - 1x = -15x. Our new equation is: -15x + 140 = 147. Subtract 140 from both sides. -15x = 7. Divide both sides by -15 to get x. x = - 7/15 I hope this helps!