Question

Eu quero a resposta de todas as letras! !

Answer 1

a)
x=1/2=3/2
x=2/2
x=1
b)
x/7=-2
x=-2.7
x=-14
c)
-9x+8=-43
-9x=-43-8
-9x=-51
x=51/9
d)x-3(4-x)=7x-(1-x)
x-12+3x=7x-1+x
4x-7x-x=-1+12
-3x-x=11
-4x=11
x=-11/4
e)x/4-x/10=2x/5-1
5x-14=8x-20
5x-8x=-20+14
-3x=-6
x=2
f)
x-1/4+3x-7/6=2x-3/3
3x-3+6x-14=8x-12
3x+6x-8x=-12+14+3
9x-8x=2+3
x=5
g)
x-4/3-1=x-2/8
8x-32-24=24x-6
8x-24x=-6+32+24
-16x=-6+56
-16x=50
x=-50/16
-25/4