luckettjay07 luckettjay07
  • 21-12-2020
  • Mathematics
contestada

Solve the system by substitution.
5x+2y= 5
y=-2x + 3

Respuesta :

Аноним Аноним
  • 21-12-2020
5x+2(-2x+3)=5
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.
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