Solution:
Note that:
Substitute the value of y into the equation to find x.
- 30 = 2x + y
- => 30 = 2x - x + 16
- => 30 = x + 16
- => 30 - 16 = x
- => x = 14
Substitute the value of x into any equation to obtain the value of y.
- 30 = 2x + y
- => 30 = 2(14) + y
- => 30 = 28 + y
- => 30 - 28 = y
- => y = 2
Putting the values in (x,y) form.
- (x,y) ⇒ (x = 14,y = 2) ⇒ (14,2)
