Question

6) Resolva as equações abaixo:
a) X – 15 = 20
b) 2x – 10 = -x + 5​

Answer 1

a) X – 15 = 20

x = 20 + 15

x = 35

b) 2x – 10 = -x + 5

2x-10=5-x

2x=15-x → 2x+x=15

3x=15 → x=15/3

x=5