Solve the system by substitution. Enter your solution coordinates.?

Question

x + 7 = 12
y = 2x

Answer 1

First solve the first equation for x.
x + 7 = 12

Subtract 7 from both sides to get
x +7 - 7 = 12 -7
x = 5

Now substitute into the last eqution.
y = 2x
We know that x equals 5, so
y = 2*5
y = 10.

x = 5 and y = 10
(5,10) is the coordinates

Answer 2

First solve for x: x = 12 - 7, or 5
then substitute y = 2(12 -7) or 10
Your coordinates are 5, 10

Good luck!

Answer 3

x= 12-7
y= 2(12-7)
y= 2(5)
y= 10
10= 2x
5= x
(5,10)