Question

help please
Solve the following system of equations.

x + y = 3
2x + 2y = 6

Answer 1

We can solve it using substitution:

x + y = 3
2x + 2y = 6

First re-arrange the 2nd equation:

x + y = 3

Subtract y to both sides:

x = -y + 3

Now we can plug in -y + 3 into the 2nd equation for 'x':

2x + 2y = 6

2(-y + 3) + 2y = 6

Distribute 2 into the parenthesis:

-2y + 6 + 2y = 6

Can you add -2y + 2y? @brianna1000

Answer 2

would it be 0?

Answer 3

Yes, which gives us:

6 = 6

So the answer here will be 'Infinitely many solutions', meaning they're the same line.

Answer 4

Welcome to OpenStudy!

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Answer 5

thank you an i did :)

Answer 6

No problem.