Question

Solve for y: -20x + 10y = 30

Answer 1

Answer:

y = 2x + 3

Step-by-step explanation:

Hello!

Solve for y by isolating the variable.

Solve for y

• $-20x + 10y = 30$
• $10y = 30 + 20x$
• $y = \frac{30 + 20x}{10}$
• $y = \frac{(10)(3 + 2x)}{10}$
• $y = 3 + 2x$
• $y = 2x + 3$

The solution is y = 2x + 3.

Answer 2

To Calculate :-

• Value of y.

Solution :-

⇒ -20x + 10y = 30

☆ Transposing (-20x) to R.H.S. sign would be changed to positive.

⇒ 10y = 30 + 20x

⇒ y = 30 + 20x / 10

⇒ y = 10 (3 + 2x) / 10

☆ Cancelling 10,

⇒ y = 3 + 2x / 1

⇒ y = 2x + 3