Question

(х-1,5)•5•2=(х+1,5)•8
Фаст

Answer 1

$(x-1,5)*5*2=(x+1,5)*8$

$(10x-15) = 8(x+1,5)$

$10x-15=(8x+12)$

$(10x-8x)-15 =(8x-8x)+12$

$2x-15=(8x-8x)+12$

$2x-15 = 12$

$2x+(-15+15) = 15+12$

$2x=12+15$

$2x=27$

$\frac{2x}{2} = \frac{27}{2}$

$x = \frac{27}{2}$

$x=13,5$