Question

resolva as equaçoes.a)4(x+1)=12 b)5(3-x)-4x=18 c)9x-3(2x+2)=15 d)2,5(x-2)-1,5x=1 e)3,5x+8=2(x7) f)6(3x+2)-8=-2 g)-3(x-5)-2(2x=1)=18

Answer 1

a)4x+4=12. 4x=16. x=16/4. x=4
b)15-5x-4x=18. -9x=-3 *(-1). x=3/9
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