3 years ago

By substitution. 3x-y=-13 y=4

Mathematics

1 answer:

ser-zykov [4K]3 years ago

7 0

Answer:

(-3,4)

Step-by-step explanation:

3x-y=-13

y=4

Substitute the second equation into the first equation

3x - 4 = -13

Add 4 to each side

3x -4+4 = -13+4

3x = -9

Divide by 3

3x/3 = -9/3

x = -3

(-3,4)

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