Question

Resolva as seguintes equações do 1°grau
a)2x-3=15
b)4y+18=20
c)5z-6=z+14
d)3m+4=20​

Answer 1

a)2x-3=15

2x=15+3

2x=18

x=18÷2

x=9

b)4y+18=20

4y=20-18

4y=2

y=2/4

c)5z-6=z+14

5z-z=14+6

4z=20

z=20÷4

z=5

d)3m+4=20

3m=20-4

3m=16

m=16/3