Question

equuaçao soluçao para 2x +5x+1200=10x e:

Answer 1

10x = 1200 + 2x + 5x
10x = 1200 + 7x
10x - 7x = 1200
3x = 1200
x = 1200/3
x = 400

Answer 2

$2x+5x+1200=10x$

$10x-2x-5x=1200$

$3x=1200$

$x=\dfrac{1200}{3}$

$\boxed{x=400}$