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2 years ago

7

Solve for B. A=3B+7C

1 answer:

Archy [21]2 years ago

6 0

Hey there!!

Given:

... A=3B+7C

Subtracting 7C on both sides:

... A-7C=3B

Dividing by B on both sides:

... (A-7C)/3=B

<em>Hope my answer helps!</em>

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What is the solution of the equation?

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Answer:

Step-by-step explanation:

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. Which ordered pairs in the form (x, y) are solutions to the equation 7x – 5y = 28?

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we know that

If a ordered pair (x,y) is a solution of the equation, then the ordered pair must satisfy the equation

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Let's verify all the cases to determine the solution to the problem.

<u>case A)</u> point $(-6,-14)$

Substitute the values of x and y in the equation

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Substitute the values of x and y in the equation

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therefore

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<u>case C)</u> point $(4,10)$

Substitute the values of x and y in the equation

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therefore

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Substitute the values of x and y in the equation

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$7(7)-5(9)=28$

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therefore

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therefore

<u>the answer is </u>

$(-6,-14)$

$(-1,-7)$

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