X+y=4
2x+y=6
make first equation negative
-x-y=-4
add to first equation
2x-x+y-y=6-4
x=2
subsitute
x+y=4
2+y=4
y=2
or
x+y=4
subtract x from both sdies
y=4-x
subsitute 4-x for y in second equation
2x+4-x=6
x+4=6
x=2
Answer:
21
Step-by-step explanation:
12 + 9 = 21
that is the distance he ran so that is the distance he will run back
( i hope that helped)
Answer:

Step-by-step explanation:
<u>slope-intercept form</u>
y= mx +c, where m is the slope and c is the y-intercept.
Let's rewrite the given equation into the slope-intercept form so we can find out its gradient.
3x +2y -6= 0
2y= -3x +6
<em>Dividing</em><em> </em><em>by</em><em> </em><em>2</em><em> </em><em>throughout</em><em>:</em>

Thus gradient of given line= 
Parallel lines have the same gradient.
Thus gradient of line= 
Subst. m=
into the equation:

To find c, substitute a pair of coordinates.
When x=0, y=0,

Thus, the equation of the line is
.
Answer:
I am sorry I don't know the answer