Question

How do I do solving systems by substitution please help

The problem I'm on is x-y=-5 with x+y=1
Please show steps I need an answer before my report card comes in tomorrow

Answer 1

x = -2.

y = 3.

Explanation:

x-y=-5

x+y=1

From the first equation

x = y - 5

Substitute this in the second equation:

y - 5 + y = 1

2y = 1 + 5 = 6

y = 3.

Substitute this into the second equation:

x + 3 = 1

x = -2.

Answer 2

I believe the answer is x=-2, and y=3.

Explanation:

Given: x-y=-5

Fill in: -2-3=-5

Calculate: -5=5

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Given: x+y=1

Fill in: -2+3=1

Calculate: 1=1