itsyagirlgona21
21.12.2020 •
Mathematics
Solve the system by substitution.
5x+2y= 5
y=-2x + 3
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Ответ:
5x-4x+6=5
x=-1
Then plug back into either to solve for y.
y=-2(-1)+3
y=2+3
y=5
Substitution means you just replace one variable with the other equation so only one variable is showing. That’s how you solve for the first variable.
Ответ: