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Whitepunk [10]
3 years ago
7

IM just a little bit slow

Mathematics
2 answers:
viva [34]3 years ago
5 0

Answer:

71°

Step-by-step explanation:

31-3x+19x-5=90

16x=90-26

16x=64

x=4

m<R=19x-5 = 19(4)-5 = 76-5 = 71

FromTheMoon [43]3 years ago
5 0

Answer:

x = 4

∠R = 71°

Step-by-step explanation:

<u>COMPLEMENTARY ANGLES:</u> TWO ANGLES WITH A SUM OF 90°.

31 - 3x + 19x - 5 = 90

To make this problem easier to solve, we can combine like terms.

26 + 16x = 90.

Now, we can proceed.

First, subtract 26 from 26 and 90.

26 - 26 = 0. (cancels itself out).

90 - 26 = 64.\\

Now, we are left with 16x = 64.

Lastly, we divide the number in front of the variable by the answer.

64/16 = 4

Therefore, the value of x is 4.

-------------------------------------------------------------------------------------------------------------

Now that we have the value of x, we can use this value to replace the variable (x).

19x - 5

19 * 4 - 5 = 71.

Therefore, the value of ∠R is 71°.

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