Question

Y=2x+3 x+2y=16

Answer 1

I'm assuming you're solving for x and y
I like using substitution best, especially since you already have the first equation solved for y
Take the right side of the first equation and plug that in where you have a y in the second equation, which would mean you'd have
x+2(2x+3)=16
Then distribute, simplify, and solve for x
x+4x+6=16
5x=10
x=2
Then, take that value for x and plug it into one of the equations to get your y solution
I'm going to plug it into the first equation, but it doesn't matter which one you use
y=2(2)+3
y=7
So your solution is (2,7)