Answer:
23
Step-by-step explanation:
I'm going to start by solving the first equation like so,
y - 8 = 15 (Remember what we do to one side we MUST do to the other)
<u> +8 +8 </u>
y = 23
So know we know y = 23 What we have to do now is replace 23 for y in the second equation.
y - 0 = ?
23 - 0 = 23
Hope that helps and have a great day!
You would first start by eliminating one of the variables in order to find the other one.
I chose to eliminate Y, so i multiplies the second equation by -2, in order to cancel Y out.
you would then solve for X, the same you would a one step equation. X =4
You then take one of the original equations, plug X in, and solve for y. Y=5
Hope this helps!
X=1
x=2
x=3
2(1)-y=4
2-y=4
-2 both sides
-y=2
÷-1 both sides
y=-2
(1,-2)
2(2)-y=4
4-y=4
-4 both sides
-y=0
y=0
(2,0)
2(3)-y=4
6-y=4
-6 both sides
-y=-2
÷-1 both sides
y=2
(3,2)
The highlighter that is 11 grams has a greater mass
