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Yanka [14]
2 years ago
12

Solve by substitution 3x - 5y = -1 , x-y = -1

Mathematics
1 answer:
nevsk [136]2 years ago
6 0

Answer:

(-2, -1)

Step-by-step explanation:

first you must reorganize the equations so that one of them has x or y equaling to something

x - y = -1 --> x = y - 1

then substitute that in for x

3(y - 1) - 5y = -1

and solve for y

3y - 3 - 5y = -1

-2y = 2

y is -1

then plug it back in to an equation to find x

x + 1 = -1

x is -2

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