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3 years ago

11

I have a question about alegbra... I need to use substitution to solve the system of equations x + y = 12 & x - y = 2. pls s

how work..

2 answers:

navik [9.2K]3 years ago

8 0

X= 12-y x=2+y
2+y=12-y
y=10-y
2y=10
y=5

x-y=2
x-5=2
x=7

Thepotemich [5.8K]3 years ago

7 0

X = 7 Y = 5 just add to get rid of a variable

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