0.25r - 0.125 + 0.5r = 0.5 + r Step 1: Move all similar terms (r) to the same side of the equation by subtracting "r" from each side of the equation 0.25r - 0.125 + 0.5r - r = 0.5 Move terms without r to the other side of the equation, by adding +0.125 to each side of the equation 0.25r + 0.5r - r = 0.5 + 0.125 Add similar terms, note that r is equal to 1r 0.75r - 1r = 0.625 -0.25r = 0.625 Solve for r by dividing both sides of the equation by -0.25 r= 0.625/(-0.25) r=-2.5
