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Gre4nikov [31]
2 years ago
6

Solve the system by substitution. x = – 4y + 6 2x + 9y = 16​

Mathematics
1 answer:
GaryK [48]2 years ago
3 0

Step-by-step explanation:

x = -4y + 6

Now,

Substituting the value of x on 2x + 9y = 16, we get -.

2(-4y + 6) + 9y = 16

-8y + 12 + 9y = 16

y = 16 - 12

<h3>y = 4</h3>

Now,

Substituting the value of y on 2x + 9y = 16, we get -

2x + 9(4) = 16

2x = 16 - 36

2x = -20

<h3>x = -10</h3>

Hence,

The value of x is -10 and y is 4.

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Remark
The easiest way to do this is to solve the sphere's volume in terms of pi. When you do this, you can equate that to the formula for a cylinder and cancel the pi values. 

Step One
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<em>Givens</em>
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<em>Formula</em>
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<em>Sub and Solve</em>
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<em>Sub and solve</em>
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