Solve for x: angles on a straight line
Angles on a straight line add to 180°. Write an equation and solve for x.
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Two angles on a straight line measure (x + 30)° and (5x − 6)°. Find x.
Answer: 26
Two angles on a straight line measure (3x + 9)° and (3x + 9)°. Find x.
Answer: 27
Two angles on a straight line measure (4x − 7)° and (5x − 38)°. Find x.
Answer: 25
Tip: Angles on a straight line add to 180°. Write an equation and solve for x.
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