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If: 24 = 6-x-3 Then: x = -21
3 + 8 - (10 x 6) = 11 - 60 = -49
-x/6 - 8 = 0 Add 8 to both sides: -x/6 = 8 Multiply both sides by 6: -x = 48 Change the sign on both sides x = -48
X + y = 8 x - y = 6 add equations to eliminate y 2x = 14 x = 7 substitute 7 + y = 8 y = 1