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Scrat [10]
3 years ago
13

What is the value of x?

Mathematics
2 answers:
Advocard [28]3 years ago
8 0

Answer:

\boxed{x \degree = 9 \degree}

Step-by-step explanation:

=  > 90\degree + 57\degree + (3x + 6)\degree = 180\degree \\   \\  =  > 57\degree + (3x + 6)\degree = 180\degree - 90\degree \\ \\  =  > 57\degree + (3x + 6)\degree = 90\degree

Two Angles are Complementary when they add up to 90° (a Right Angle).

=  > 57 \degree + (3x + 6) \degree = 90 \degree \\  \\  =  > 57 \degree + 3x \degree + 6 \degree = 90 \degree \\  \\  =  > 63 \degree + 3x \degree = 90 \degree \\  \\  =  > 3x \degree = 90 \degree - 63 \degree \\  \\  =  > 3x \degree = 27 \degree \\ \\ = > x\degree = \frac{27}{3}\degree \\ \\ = > x\degree = 9\degree

KatRina [158]3 years ago
5 0

57+3x+6=90degree

60+3x=90

3x=90-60

3x=30

x=30/3

x=10

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