Respuesta :
Answer:
x = 4
y = 15
Step-by-step explanation:
4x-y=1
-3x+y=3
In elimination, you have to have at least one term where they are opposites, but with equal coefficients. Since this requirment is met, we can add the 2 equations. This gives us:
x=4
Now we substitute x to find y.
4(4)-y=1
16-y=1
-y=-15
y=15
Answer:
(2, 9 )
Step-by-step explanation:
4x - y = - 1 → (1)
- 3x + y = 3 → (2)
adding the 2 equations term by term will eliminate y
x + 0 = 2
x = 2
substitute x = 2 into either of the 2 equations and solve for y
substituting into (1)
4(2) - y = - 1
8 - y = - 1 ( subtract 8 from both sides )
- y = - 9 ( multiply both sides by - 1 )
y = 9
solution is (2, 9 )
