-3x+4 = -10+5(-7-x)5x-4 = 4-3(5-2x)10-3(1-7x) = -4x-85(5+3x)-10x = 87(-5+3x)+4x = 9x-1+(x+2) = -4(-5-x)-5-2x+1+5(x-2) = -4(3-x)+1

1) -3x+4=-10+5(-7-x); -3x+4=-10-35-5х;2х=-49;

2) 5x-4=4-3(5-2x); 5x-4=4-15+6x;

3) 10-3(1-7x)=-4x-8; 10-3+21x=-4x-8; 25х=-15;

4) 5(5+3x)-10x=8; 25+15x-10x=8; 5х=-17;

5) 7(-5+3x)+4x=9; -35+21x+4x=9; 25х=44;

6) x-1+(x+2)=-4(-5-x)-5; x-1+x+2=20+4x-5; 2х=-14;

7) -2x+1+5(x-2)=-4(3-x)+1; -2x+1+5x-10=4x-12+1; х=-2;