Answer:
68°
Step-by-step explanation:
x+42+90=180
x+132=180
x=180-132
x=68°
Hope it helps you ......
x = 48°
Explanation:
42 + 90 + x = 180 (we can tell because it is a straight line and straight lines are supplementary, ie = 180)
Rearrange the equation so that x is on one side:
x = 180 - 90 - 42
Simplify
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