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puteri [66]
3 years ago
12

Can someone explain how to do this?

Mathematics
2 answers:
mel-nik [20]3 years ago
8 0

Answer:

x = 32°

Step-by-step explanation:

The two angles form a straight line, so therefore they are <u>supplementary</u>.

The sum of <u>supplementary</u> angles always equal 180°, so we know that:

(3x - 4) + (3x - 8) = 180°

Now you have the equation, solve for x.

3x - 4 + 3x - 8 = 180°

6x - 12 = 180°

6x = 192°

x = 32°

iVinArrow [24]3 years ago
4 0

Answer:

3x-4+3x-8=180

3x+3x=180+4+8

6x=192

x=32

check: 3(32)-4+3(32)-8=180

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