Question

resolva as equaçoes:
a)2-3x=-9-4x
b)350x-500=100x+750
c)x+5,41=3,87
d)3(2x-1)=-2(x+3)
e)4(x+10)-2(x-5)=0
f)3,5+8=2(x+7)

Answer 1

A)2-3x=-9-4x
-3x+4x=-9-2
x=-11

B)350x-500=100x+750
350x-100x=750+500
250x=1250
x=1250/250
x=5

C)x+5,41=3,87
x=3,87-5,41
x=--1,54

d)3(2x-1)=-2(x+3)
6x-3=-2x-6
6x+2x=-6+3
8x=-3
x=-3/8