Question

Determine o valor do x

A) 3x+10 =50
B) 2x =100

Answer 1

$a) \\ 3x + 10 = 50 \\ 3x = 40 \\ x = \frac{40}{3} = 13.33333...$
$b) \\ 2x = 100 \\ x = 50$

Answer 2

A) 3x=50-10
3x=40
x=40÷3
x=13,3

B)2x=100
x=100÷2
x=50