Answer:
(2, 2 )
Explanation:
Given the 2 equations
3x + 6y = 18 → (1)
- 3x + 4y = 2 → (2)
Adding the 2 equations term by term will eliminate the x- term, that is
0 + 10y = 20
10y = 20 ( divide both sides by 10 )
y = 2
Substitute y = 2 into either of the 2 equations and solve for x
Substituting into (1)
3x + 6(2) = 18
3x + 12 = 18 ( subtract 12 from both sides )
3x = 6 ( divide both sides by 3 )
x = 2
solution is (2, 2 )