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how to solve this substitution method problem that are both in function form

1) y=2x+3

2) y=3x+10

Substitute the right side of equation two, which is the value of y,

for the left side of equation equation one.

3x + 10 = 2x + 3

3x + 10 - 2x = 2x + 3 - 2x

x + 10 = 3

x + 10 - 10 = 3 - 10

x = -7

Now, you have a value for x that you can

substitute into either of the two equations.

y = 2x + 3

y = 2(-7) + 3

y = -14 + 3

y = -11

To verify the answers, substitute them

into the other equation.

y = 3x + 10

-11 = 3(-7) + 10

-11 = -21 + 10

-11 = -11

...