2 ( X+ 3); 4(X-5); 9( 4+y); 5(y-2)
1) 2(x+3) = 2x + 12 2) 4(x-5) = 4x - 20 3) 9(4+y) = 36 + у 4) 5(у-2) = 5у - 10
2х+6=0 2х=-6 х=-3 4х-20=0 4х= 20 х=5 36+9у=0 9у=-36 у=-4 5у-10 =0 5у=10 у=2