Question

7x + 3 = 30- 2x поможіть пожалуста

Answer 1

$7x + 3 = 30 - 2x \\ 7x + 2x = 30 - 3 \\ 9x = 27 \\ x = 27 \div 9 \\ x = 3$

Answer 2

7x+3=30-2x
7x+2x=30-3
9x=27
x=27\9
x=3