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riadik2000 [5.3K]
3 years ago
6

Solve the following equation 5x-15=50

Mathematics
2 answers:
denis-greek [22]3 years ago
5 0
X=13 I say.................
AfilCa [17]3 years ago
3 0
X=13
5x=50+15
5x=65
65/5
14
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Solve the system using substitution: y + 8x = 10 and 2y - 4x = 40
exis [7]

Answer:

Hence x = -1 and y = 18

<em></em>

Step-by-step explanation:

Given the system of equations

y + 8x = 10... 1

2y - 4x = 40 ... 2

From 1; y = 10-8x

Substitute into 2;

2(10-8x) - 4x = 40

20 - 16x - 4x = 40

20 - 20x = 40

-20x = 40 - 20

-20x = 20

x = -1

Recall that y = 10-8x

y = 10 - 8(-1)

y = 10 + 8

y = 18

Hence x = -1 and y = 18

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4 0
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Step-by-step explanation:

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