-4(16+8x)+12(7-3x)=50(x+3)-(15-x)
-64-32х+84-36х=50х+150-15+х
-68х-50х-х=150-15+64-84
-119х=115
х= - 115/119
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-4(16+8x)+12(7-3x)=50(x+3)-(15-x)
-64-32х+84-36х=50х+150-15+х
-68х-50х-х=150-15+64-84
-119х=115
х= - 115/119