a) 3(x-4)-4(2x-7)=2(x+5) b) 2(2x-3)+3(4-x)=-(x=1) c) 2(x-3)-4(3+x)=-3(x+5=-2(2x+3)+4(2x-1) d0 6(4-x)+5(2x-5)=4(x-1)-3(4-x)

a)3x-7-8x+28=2x +10 -5x +21 = 2x + 10 -5x-2x=-21+10 -7x=-11/-7 x=-11/-7

a) 3(x-4)-4(2x-7)=2(x+5) 3x-12-8x+28=2x+10 3x-8x-2x=10-28+12 7x=6 /:7 x=6/7 b)2(2x-3)+3(4-x)=-(x-1) 4x-12+12-3x=-x+1 4x+x-3x=-12+12+1 2x=1 /2 x=1/2 c)2(x-3)-4(3+x)=-3(x+5)-2(2x+3)+4(2x-1) 2x-6-12-4x=-3x-15-4x-6+8x-4 2x-4x+3x+4x-8x=-15-6-4+6+12 -3x=-7 /-3 x=7/3=2 1/3 d)6(4-x)+5(2x-5)=4(x-1)-3(4-x) 24-6x+10x-25=4x-4-12+3x -6x+10x-4x-3x=-24+25-4-12 -3x=-15 /-3 x=5