Solve the system of equations. y=-3x+4 -4x+y=-10
2 answers:
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Add sides 3x


_________________________________


Multiply sides of the (( equation 2 )) by - 1


Add up equations


Divide sides by 7


Put the value of x in one of the (1) or (2) equations to find the value of y .
<em>I </em><em>put </em><em>it </em><em>in </em><em>equation</em><em> </em><em>1</em><em> </em><em>:</em><em> </em>




Subtract sides 6


And we're done...
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Answer:
Step-by-step explanation:
In this particular case we have the following system of equations:
y
=
−
3
x
+
4
[
E
q
.
1
]
x
+
4
y
=
−
6
[
E
q
.
2
]
Substituting
[
E
q
.
1
]
in
[
E
q
.
2
]
:
x
+
4
(
−
3
x
+
4
)
=
−
6
Applying the distributive property on the left side:
x
−
12
x
+
16
=
−
6
Simplifying
:
−
11
x
=
−
22
Solving for
y
:
x
=
−
22
−
11
=
2
Substituting
x
=
2
in
[
E
q
.
1
]
:
y
=
−
3
(
2
)
+
4
=
−
2
Therefore
, the solutions are
x
=
2
and
y
=
−
2
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I hope this helps!
p.s. have any more questions? Post the question and comment the link below!
Ciao!
♥, Sadie