Question

1)Resolva as equações:
a X - 5 = 8
b) 3x + 6 = 12
c) 2x + 4 = 8
d) 2x + 10= 70
e18x - 43 = 65 mim ajudem por favor​

Answer 1

Resposta:

x-5=2.22

x=44+5

x=49

2x+8=0

2x=-4

5x-4=6+8

5x-6x=8+4

x=12

2x-8=3x-10

2x-3x+-10+8

x=-12

18x-43=65

18x=65+43

x=6

23x-16=14-17x

23x+17x=14+16

40x=30

x=3/4

10y-5-5y=6y-6-20

10y=5y-6y=-6-20+5

x=21

x-2x+5-10x=3-x

x+x-2x=10x=3-5

10x=-7

x=-7/10

Espero ter ajudado!