Question

Solutia reala a ecuatiei -2x+11=7

Answer 1

-2x=7-11
-2x=-4
x=-4:(-2)=2

Answer 2

$- 2x + 11 = 7$

$- 2x = 7 - 11$

$- 2x = - 4 \: | \div ( - 2)$

$x = 2 \: \epsilon \: \mathbb{R}$