Solve the system using substitution.
x + 3y = 3
3y - 2x = 12
([?], [ ])

(-3,2)

Step-by-step explanation:

Solving by substitution involves taking one of the equations and basically plugging it into the other.

I would start by taking the first equation and rearranging it to equal a variable. It will be easier to solve using this equation as the x variable is already isolated.

Take:

Subtract 3y to the other side:

Now plug this equation in for the value x into the other equation like so:

Now there is only one variable to solve in this new equation. Solve for the value y.

Distribute -2:

Combine Like Terms:

Add 6 to both sides to cancel:

Divide by 9 to both sides to cancel 9:

So the value y=2.

Now we can plug the value of y back into either equation to now solve for x.

Now you have the point (-3,2)

You can check your answers if you would like.

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step-by-step explanation

2r= 2300

r =1150