3 years ago

Find the missing angle measures. (2x-3),(8x) and(x+7)

Mathematics

1 answer:

anzhelika [568]3 years ago

3 0

Answer:

2x-3 = 29

8x = 128

x+7 = 23

Step-by-step explanation:

The sum of the angles of a triangle is 180

2x-3 + 8x+ x+7 = 180

Combine like terms

11x+4 = 180

Subtract 4 from each side

11x+4-4= 180-4

11x = 176

Divide by 11

11x/11 =176/11

x =16

2x-3 = 2*16-3 =32-3 = 29

8x = 8*16 =128

x+7 = 16+7 = 23

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