👉 In mathematics, a "step-up" is an operation that increases by one. For example, in a linear system of equations, if you add 1 to each side, the new equation becomes: y = mx + b Where m and b are constants. If you subtract 1 from each side, the new equation becomes: y - 1 = mx - b In both cases, "step-up" means that one variable is multiplied by 1 plus a constant factor.