Solve by substitution: 5x+y=-13 and y=7
2 answers:
Answer: 4/7
Step-by-step explanation: Multiply each equation by the value that makes the coefficients of
y
opposite.
5
x
+
2
y
=
7
(
2
)
⋅
(
3
x
−
y
)
=
(
2
)
(
13
)
Simplify.
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5
x
+
2
y
=
7
6
x
−
2
y
=
26
Add the two equations together to eliminate
y
from the system.
5
x
+
2
y
=
7
+
6
x
−
2
y
=
2
6
1
1
x
=
3
3
Divide each term by
11
and simplify.
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x
=
3
Substitute the value found for
x
into one of the original equations, then solve for
y
.
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y
=
−
4
The solution to the independent system of equations can be represented as a point.
(
3
,
−
4
)
The result can be shown in multiple forms.
Point Form:
(
3
,
−
4
)
Equation Form:
x
=
3
,
y
=
−
4
The answer I got is X=6/5 y=7
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It can only be simplified unless n is defined.
7n + 4n + 5 = 11n + 5
40+20=60 +4= 64 that is the answer
Answer: 7/8
Step-by-step explanation:
If the ratio is vanilla to chocolate, it would be
42:48
Dividing by 2
= 21:24
Dividing by 3
= 7:8
Answer:
162 miles
Step-by-step explanation:
108m / 4g = 27m/g
27m = 1 g
27m x 6g = 162
The solutions for all 15!!
1.x^2+ x - 6
2.x^2 - 8x - 48
3.x^2 + 7x + 12
4.x^2 + 13x + 42
5.x^2 + 17x + 72
6.x^2 - 25
7.x^2 - 9
8.x^2 + 20x + 100
9.x^2 + 10x - 24
10.x^2 + x - 12
11.x^2 + 7x + 10
12.x^2 - 7x + 12
13.x^2 - 49
14.x^2 - 3x - 18
15.x^2 + 5x - 50
There hope it helps!
