First, add 12 to both sides of the equation, -3y - 12 + 12 = -4 + 12 -3y = 8 Then, divide both the left hand and right hand sides of the equation by -3 (-3y) / -3 = 8/-3 The value of y is therefore, y = -8/3
<h2>Step 1: Solve one of the equations for one of the variables. Let's solve the first equation for y: ...</h2><h2>Step 2: Substitute that equation into the other equation, and solve for x. ...</h2><h2>Step 3: Substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.</h2>
