from first equation x = 7 + 2y. Substitute this into second equation:-
2(7 + 2y) + 5y = 5
9y = -14 + 5 = -9
y = -1
Plug this into the first equayion
x - 2(-1) = 7
x = 5
Answer is x = 5, y = -1 .
Let’s solve x-2y=7 first.
Add 2y from both sides.
X=2y+7
Substitute x=2y+7 in 2x+5y=5 for x.
2(2y+7)+5y=5
Simplify.
9y+14=5
Subtract 14 from both sides.
9y=-9
Divide 9 from both sides
y=-1
Substitute the y in x-2y=7
x-2(-1)=7
x=5
ANSWER: x=5, y=-1
