y=4x-3and y=3x+1solve in graph
Answers
Answered by
0
just find the value of x and y and plot it on graph.
Answered by
0
Because the second equation has already be solved for
y
we can substitute
−
3
x
−
3
for
y
in the first equation and solve for
x
:
−
3
x
−
3
=
4
x
−
3
−
3
x
−
3
+
3
x
+
3
=
4
x
−
3
+
3
x
+
3
−
3
x
+
3
x
−
3
+
3
=
4
x
+
3
x
−
3
+
3
0
−
0
=
4
x
+
3
x
−
0
0
=
4
x
+
3
x
0
=
(
4
+
3
)
x
0
=
7
x
0
7
=
7
x
7
0
=
7
x
7
0
=
x
or
x
=
0
Now that we have
x
we can substitute
0
for
x
in the second equation and calculate
y
:
y
=
(
−
3
⋅
0
)
−
3
y
=
0
−
3
y
=
−
3
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