How do I solve system of equations substitution method??!!?!???
1 answer:
For example:
x+2y=7
6x+7y=2
__________
x=7-2y *
6*(7-2y)+7y=2 **
__________
x=7-2y
42-12y+7y=2
__________
x=7-2y
-5y=-40
__________
x=7-2y
y=8
x=-9
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Answer:
x∧2+4x-16
Step-by-step explanation:
Isnt it 16? Im pretty sure its 16 if not then idk lol