Question

x-3(2x-5)=5(x-1)????

Answer 1

Răspuns:

x - 3(2x - 5) = 5(x - 1)

x - 6x + 15 = 5x - 5

- 5x + 15 = 5x - 5

- 5x - 5x = - 5 - 15

- 10x = - 20

x = 20 : 10

x = 2

Answer 2

Răspuns: $\bf \red{\underline{x=2}}$

Explicație pas cu pas:

$\bf x - 3\cdot \big (2x - 5\big ) = 5\cdot \big(x - 1\big)$

$\bf x - 6x +15 = 5x - 5$

$\bf 15-5x = 5x - 5$

$\bf 15 = 5x - 5+5x$

$\bf 15 = 10x - 5$

$\bf 15+5= 10x$

$\bf 20= 10x$

$\bf x=20:10 \implies \red{\underline{x=2}}$

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