Question

resolva as equaçoes . A) 2x+4=10
B) 5k-12=20
C)2y+15-y=22
D)9h-2=16+2n

Answer 1

A) 2x + 4 = 10

2x = 10-4

2x=6

x= 6÷2

x= 3

c) 2y+15-y= 22

y= 22- 15

y= 7

alguém resolve as outras aí