Question

Alguém me ajuda por favor
a)18x - 43=65
b)23x - 16= 14 -17x
c) 10y - 5 + y) = 2y - 20
d)x - 5 +10 - 2x - 5 = 3 - x + 4
e)7x - 2 = - 4x + 5

Answer 1

a)18x-43=65

18x = 65+43

18x=108

x= 108/18

x=6

b)23x-16=14-17x

23x + 17x = 14+16

40x = 30

x = 40/30

c)10y-5+ y =2y-20

10y + y - 2y = 5+20

11y-2 = 5+20

9y = 25

y=25/9

d)x-5+10-2x-5=3-x+4

x-2x+x = 5-10+3+4

2x=2

x=2/2

x=1

e)7x-2=-4x+5

7x+4x = 2+5

11x = 7

x=11/7