Question

Resolva as seguintes equações a) 18x-45=65 b)23x-16=14-17x

Answer 1

 a) 18x - 45 = 65
18x = 65 + 45
18x = 110
x = 110  /18     ÷2
x = 55/9

 b)23x - 16 = 14 - 17x
23x + 17x = 14 + 16
40x = 30
x = 30 / 40    " corta os zeros "
x = 3/4

Answer 2

a) 18x=65+45
18x=110
x=110÷18
x = 6.11

b) 23x + 17x =14+16
40x = 30
x= 30÷40
x= 0.75