Question

Resolva as equações :
1 ) 4(x+10)-2(x-5)=0
2 ) 3(2x+3)-4(x-1)=3
3 ) 2(3-x)=3(x-4)+15

Answer 1

1) 4x+40-2x+10=0 2) 6x+9-4x+4=3 3)6-2x=3x-12+15
2x+50=0 2x=3-13 -2x-3x=3-6
2x=-50 2x=-10 -5x=-3
X=-25 X=-5 X=3/5