Question

Question is depicted below:

Answer 1

Solve the system of equations to find the value of y.

• 10x + 10y = 40

5x + 3y = 8

• 10x + 10y = 40

2(5x + 3y = 8)

• 10x + 10y = 40

10x + 6y = 16

• 4y = 24
• y = 6

Substitute the value of y into any equation to find the value of x.

• 10x + 10y = 40
• => 10x + 10(6) = 40
• => 10x + 60 = 40
• => 10x = -20
• => x = -2

Putting them in (x,y) form.

• (x,y) ⇒ (x = -2,y = 6) ⇒ (-2,6)