0.2(x+50)-6=0.4(3x+20) so like here Let's solve your equation step-by-step.0.2(x+50)−6=0.4(3x+20)Step 1: Simplify both sides of the equation.0.2x+4=1.2x+8Step 2: Subtract 1.2x from both sides.0.2x+4−1.2x=1.2x+8−1.2x−x+4=8 Step 3: Subtract 4 from both sides.−x+4−4=8−4 −x=4 your answer is x=-4 because you divide by a negative 1