1)4x - 39 = 5x +87 +2x;
2) -15y -109 +269 +27y;
3)18z + 600 =29x +152;
1) 4x-5x-2x=87+39 -3x=126 x=-42
2) -15y-27y=269+109 -42y=378 y=-9
3) 18z-29z=152-600 -11z=-448 z=448/11
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