Question

resolva a equação: 9x-4x+10=7x-30​

Answer 1

9x-4x+10=7x-30

5x+10=7x-30

10+30=7x-5x

40=2x

40÷2=x

x=20

Answer 2

Resposta:

$9x - 4x + 10 = 7x - 30 \\ 9x - 4x - 7x = - 10 - 30 \\ 9x - 11x = - 40 \\ - 2x = - 40 .( - 1) \\ 2x = 40 \\ x = 20$