Question

Resolva as equação a seguir
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Answer 1

Resposta:

a) 23x + 2 = 2

$23x + 2 = 2 \\ 23x = 2 - 2 \\ 23x = 0 \div 23 \\ x = 0$

b) 12-7+4x = 25

$12 - 7 + 4x = 25 \\ 5 + 4x = 25 \\ 4x = 25 - 5 \\ 4x = 20 \\ x = \frac{20}{4} \\ x = 5$

c) 5x-3x = 30

$5x - 3x = 30 \\ 2x = 30 \\ x = \frac{30}{2} \\ x = 15$

d) 4x +10 = 45-3x

$4x + 10 = 45 - 3x \\ 4x + 10 + 3x = 45 \\ 7x = 45 - 10 \\ 7x = 35 \\ x = \frac{35}{7} \\ x = 5$