Answer:
Explanation:
It looks like your equations are
y = 2x + 3
y = x + 2
Using substitution, since the expressions, 2x+3 and x+2 are both equal to y, then they must be equal to each other.
2x+3 = x+2
Subtract x from both sides (this removes the x from the right side of the equation and we'll only have x on the left side)
x+3 = 2
Then subtract 3 from both sides if the equation.
x = -1
Almost finished! You still have to find y. You can use either of the original equations to find y. Use x = -1 in one of the equations. Let's use y = 2x + 3
y = 2x + 3
y = 2*(-1) + 3
y = -2 + 3
y = 1
So you found x=-1 and y=1. These are the answers because this pair makes both of the original equations true. We can write them in an ordered pair, like this:
(-1, 1)
Inside the parenthesis, the first number is the x and the second number is the y