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Sagot :
Angles on a straight line add up to 180 degrees so
45 + 3x = 180
Subtract 45 from both sides to remove the 45 on the left
3x = 135
Then divide both sides by 3
x = 45
Answer is X = 45
45 + 3x = 180
Subtract 45 from both sides to remove the 45 on the left
3x = 135
Then divide both sides by 3
x = 45
Answer is X = 45
Answer:
45 + 3x = 180
x = 45
Step-by-step explanation:
45 + 3x = 180
3x = 180 - 45
3x = 135
x = 135/3
so, x = 45
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