Question

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

Answer 1

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

Answer 2

y = 2x + 3

Explanation:

Hello!

Solve for y by isolating the variable.

Solve for y

• 
  `-20x + 10y = 30`
• 
  `10y = 30 + 20x`
• 
  `y = (30 + 20x)/(10)`
• 
  `y = ((10)(3 + 2x))/(10)`
• 
  `y = 3 + 2x`
• 
  `y = 2x + 3`

The solution is y = 2x + 3.