Решите уравнение: 4x+5(3-2x)=5-11x; 19-2(3x+8)=2x-37; 8x+3(7-2x)=4x+3; 23-4(3x+8)=1-17x;
4x=15-10x=5-11x 4x+11x-10x=5-15 5x=-10 x= - 2 19-6x-16=2x-37 3-6x=2x-37 3+37=2x+6x 40=8x x= 5 8x+21-6x=4x+3 8x-6X-4x=3-21 -2x=-18 x=9 23-12x-24=1-17x 23-32-1=12x-17x -10=-5x x=2
1)4x+5(3-2x)=5-11x; 4x+15-10x=5-11x 4x-10x+11x=5-15 5x=-10 x=-2 2)19-2(3x+8)=2x-37 19-6x-16=2x-37 -6x-2x=-37+16-19 -8x=-40 x=5 3)8x+3(7-2x)=4x+3; 8x+21-6x=4x+3 8x-6x-4x=3-21 -2x=-18 x=9 4)23-4(3x+8)=1-17x; 23-12x-32=1-17x -12x+17x=1-23+32 5x=10 x=2