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Otrada [13]
3 years ago
15

The measures of the angles of triangle are 3x°,5x°,76°. Find the value of x

Mathematics
1 answer:
Cerrena [4.2K]3 years ago
5 0
Triangle = 180°

3x + 5x + 76 = 180
combine like terms

8x + 76 = 180
subtract 76 from both sides

8x = 104
divide both sides by 8 to isolate the variable

x = 13
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lesya692 [45]
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Fiona solved the equation shown. – StartFraction 5 Over 3 EndFraction v plus 4 equals 8 minus StartFraction 1 Over 3 EndFraction
butalik [34]

Answer:

Simplifying by collecting like terms

Step-by-step explanation:

Given

See attachment for complete question

Required

The missing step

The missing step is at step 2.

At step 1, we have:

\frac{1}{2} - 2x +1 = -\frac{13}{2}

At step 2, we have:

\frac{3}{2} - 2x= -\frac{13}{2}

What she did at step 2, is that:

She collected like terms; 1 and \frac{1}{2}

Then she simplified the like terms: 1 + \frac{1}{2} =\frac{3}{2}

<em>Hence (a) is correct</em>

4 0
2 years ago
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