2 years ago

I don’t understand this at all

Mathematics

1 answer:

xz_007 [3.2K]2 years ago

8 0

Answer:

x=8

Step-by-step explanation:

You would set them equal to each other to get 9x-13=6x+11.

You would them move 6x over so -6x on both sides. This would then get you 3x-13=11.

Then move the -13 over so add 13 to both sides to get 3x=24

Then get x by itself so divide by 3 to get x=24/3.

Then that simplified is 8

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here's the solution,

we know that, sum of measures of each interior angle of a triangle = 180°

Figure 1.

=》

$40 + 32 + 9x + 9 = 180$

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$81 + 9x = 180$

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$9x = 180 - 81$

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$x = \frac{99}{9}$

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Figure 2. 

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$4x = 180 - 120$

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$x = \frac{60}{4}$

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Figure 3.

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