3x + 8 =-2x - 7 step 1 move the variable on one side 3x + 2x + 8 = -7 add the 3x + 2x = 5x 5x +8 = -7 subtract the 8 to both side 5x + 8 - 8 = -7 - 8 the (8-8) cancels out because it equal to zero you are left with 5x = -15 divide the 5 on both sides and you get x = -3
in order to find your just plug in ×= -3 to any equation to find y. I hope this helps
