Question

Розв'язати рівняння:а) 7x = -30 + 2x;б) 20 — 2x = 27 + х.​

Answer 1

Ответ:

1)7x=-30+2x

7x-2x=-30

5x=-30

x=-30/5

x=-6

2)20-2x=27+x

-2x-x=27-20

-3x=7

x=-2.3

Пошаговое объяснение:

Answer 2

Ответ:

а)7х=-30+2х

7х-2х=-30

5х=-30

х=-6

б)20-2х=27+х

-2х-х=27-20

-3х=7/

х=7/3

Answer 3

Alright, let's solve these equations.

а) $7x = -30 + 2x$

Subtract $2x$ from both sides:

$5x = -30$

Now, divide both sides by 5 to solve for $x$:

$x = -6$

б) $20 - 2x = 27 + x$

Add $2x$ to both sides:

$20 = 27 + 3x$

Subtract 27 from both sides:

$-7 = 3x$

Now, divide both sides by 3:

$x = -\frac{7}{3}$

So, $x = -6$ for the first equation and $x = -\frac{7}{3}$ for the second one.