Question

resoha as equações:
a) 3(2x-4)=4(x-3)
b)2(4x+3)=5x+10=
c)4(3x-1)=2(x+8)
d)6(x-4)=(x+8)
e)6(x-4)=3x+10
f)7(x-6)=2(x-7)

Answer 1

a) 3(2x+4)=4(x-3)
6x+12=4x-12
6x-4x=-12-12
2x=-24
x=-24/2
x=-12

b)2(4x+3)=5x+10
8x+6=5x+10
8x-5x=10-6
3x=4
x=4/3

c) 4(3x-1)=2(x+8)
12x-4=2x+16
12x-2x=16+4
10x=20
x=20/2
x=10

d) 6(x-4)=(x+8)
6x-24=x+8
6x-x=8+24
5x=32
x=32/5

e)6(x-4)=3x+10
6x-24=3x+10
6x-3x=10+24
3x=34
x=34/3

f)7(x-6)=2(x-7)
7x-42=2x-14
7x-2x=42-14
5x=28
x=28/5