Question

x+30=40
2x+1=15
4x+2=38
9x=6x+12
6x-3=9
x+297=532​

Answer 1

Resposta:

x+30=40

$x = 40 - 30 \\ x = 10$

2x+1=15

$2x = 15 - 1 \\ 2x = 14 \div (2) \\ x = 7$

4x+2=38

$4x = 38 - 2 \\ 4x = 36 \div (4) \\ x = 9$

9x=6x+12

$9x - 6x = 12 \\ 3x = 12 \div (3) \\ x = 4$

6x-3=9

$6x = 9 + 3 \\ 6x = 12 \div (6) \\ x = 2$

x+297=532

$x = 532 - 297 \\ x = 235$