Answer:
(- 1, 1 )
Step-by-step explanation:
Given the 2 equations
- 4x + 5y = 1 → (1)
4x + 4y = 8 → (2)
Adding (1) and (2) term by term will eliminate the term in x
9y = 9 ( divide both sides by 9 )
y = 1
Substitute y = 1 into either (1) or (2) for corresponding value of x
Substituting in (1)
4x + 5(1) = 1, that is
4x + 5 = 1 ( subtract 5 from both sides )
4x = - 4 ( divide both sides by 4 )
x = - 1
Solution is (- 1, 1 )
