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Ksivusya [100]
3 years ago
15

2y-3x=-27 5y+3x=6 Solve x and y

Mathematics
1 answer:
zubka84 [21]3 years ago
7 0

Answer: y=-3 x=7

Step-by-step explanation:

2y-3x=-27.............(1)

5y+3x=6.................(11)

Add (1) and (11)

2y+5y-3x+3x=-27+6

7y=-21

Divide both sides by 7

7y/7=-21/7

y=-3

Substitute y=-3 in 5y+3x=6

5(-3)+3x=6

-15+3x=6

3x=6+15

3x=21

Divide both sides by 3

3x/3=21/3

x=7

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Solve:<br>.<br>.<br>.<br><br>PLS DON SPAM
MrRissso [65]
4
)
10(x+6)+8(x−3)=5(5x−4)

2 Expand.
10
x
+
60
+
8
x
−
24
=
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x
−
20
10x+60+8x−24=25x−20

3 Simplify
10
x
+
60
+
8
x
−
24
10x+60+8x−24 to
18
x
+
36
18x+36.
18
x
+
36
=
25
x
−
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18x+36=25x−20

4 Subtract
18
x
18x from both sides.
36
=
25
x
−
20
−
18
x
36=25x−20−18x

5 Simplify
25
x
−
20
−
18
x
25x−20−18x to
7
x
−
20
7x−20.
36
=
7
x
−
20
36=7x−20

6 Add
20
20 to both sides.
36
+
20
=
7
x
36+20=7x

7 Simplify
36
+
20
36+20 to
56
56.
56
=
7
x
56=7x

8 Divide both sides by
7
7.
56
7
=
x
7
56
​
=x

9 Simplify
56
7
7
56
​
to
8
8.
8
=
x
8=x

10 Switch sides.
x
=
8
x=8


Your answer is

X=8
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2 years ago
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aleksklad [387]

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