Question

calcular o valor de:
10X-2=7X

Answer 1

Resposta:

x=3/2

Explicação passo-a-passo:

$10 x - 2 = 7x \\ 10x - 2 = 7x \\ 10x = 7x + 2 \\ 10x - 2 = 7x \\ 10x = 7x + 2 \\ 10x - 2 = 7x \\ 10x = 7x + 2 \\ 10x - 7x = 7x + 2 - 7x \\ 10x - 7x = 2 \\ 10x - 2 = 7x \\ 10x - 7x \\ 10x - 7x = 2 \\ 10x - 7x \\ (10 - 7)x \\ 3x \\ 10x - 7x =2 \\ 3x = 2 \\ 3x \div 3 = 2 \div 3 \\ x = 2 \div 3 \\ 3x \div 3 = 2 \div 3 \\ x3 \: \frac{2}{3} \\ 3x = 2 \\ x = \frac{3}{2} \\ resposta \\ x = \frac{3}{2}$