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nordsb [41]
3 years ago
15

Is this right? If not can someone explain why?

Mathematics
2 answers:
NikAS [45]3 years ago
7 0

Answer:

see below

Step-by-step explanation:

10 = ax - 3b

We want to solve for x

Add 3b to each side

10+3b = ax-3b+3b

10 +3b = ax

Divide each side by a

10/a + 3b/a = ax/a

10/a + 3b/a =x

There is no x in the second term on the right to factor out

Yuri [45]3 years ago
3 0

Hi there!

In the second step, there is no x in <em>3b</em> to factor out.

In the second step, "x" is factored from ax - 3b which is incorrect.

In order to factor out a variable, both terms must contain "x". In this instance, however, <em>3b </em>does not contain an "x" variable.

To properly solve, you would do:

10 = ax - 3b

Isolate the x variable:

10 - 3b = ax

Divide both sides by a:

(10 - 3b) / a = x.

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Answer:
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Explanation:
In any triangle, the measure of the exterior angle is equal to the summation of the measures of the other two non-adjacent angles.

In the given triangle:
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Based on the above theorem:
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Hope this helps :)
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