Question

2x-4=10





3x+5=17





4x-6=18





5x-8=2x




3x+7=-2x+22





6x-10=4x





3x+18=x





7x-18=3x+6




Me Ajuda por favor​

Answer 1

Resposta:

$2x - 4 = 10 \\ 2x = 10 + 4 \\ 2x = 14 \\ x = \frac{14}{2} \\ x = 7$

$3x + 5 = 17 \\ 3x = 17 - 5 \\ 3x = 12 \\ x = \frac{12}{3} \\ x = 4$

$4x - 6 = 18 \\ 4x = 18 + 6 \\ 4x = 24 \\ x = \frac{24}{4} \\ x = 6$

$5x - 8 = 2x \\ 5x - 2x = 8 \\ 3x = 8 \\ x = \frac{8}{3}$

$3x + 7 = - 2x + 22 \\ 3x + 2x = 22 - 7 \\ 5x = 15 \\ x = \frac{15}{5} \\ x = 3$

$6x - 10 = 4x \\ 6x - 4x = 10 \\ 2x = 10 \\ x = \frac{10}{2} \\ x = 5$

$3x + 18 = x \\ 3x - x = - 18 \\ 2x = - 18 \\ x = \frac{ - 18}{2} \\ x = - 9$

$7x - 18 = 3x + 6 \\ 7x - 3x = 6 + 18 \\ 4x = 24 \\ x = \frac{24}{4} \\ x = 6$