rosehayden21
19.07.2021 •
Mathematics
Solve the system using substitution. x+y=-2 and x-y=-8
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Ответ:
1) x+y=-2
x=-2-y
2) x-y=-8
substitude value of x
(-2-y)-y=-8
-2-2y=-8
-2y=-6
y=3
Substitute value of y in 1
x=-2-3
x=-5
Brainliest please~
Ответ:
5
Step-by-step explanation:
Step 1: Multiply 2 * 2
2 * 2 + 1
4 + 1
Step 2: Add 4 + 1
4 + 1
5
5