-12, -9, 6, 8 because negatives are smaller than positives.
9x+14x+4x+90 = 360
27x = 270
x = 10
<F = 14x = 14(10) = 140
Step-by-step explanation:
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Answer:
178 - 3x.
Step-by-step explanation:
The three angles in a triangle add up to 180 degrees so an expression for the third angle is:
180 - (x + 9) - (2x - 7)
Distributing the negative over the parentheses, we have
180 - x - 9 - 2x + 7
= 180 - 9 + 7 - x - 2x
= 180 - 2 - 3x
= 178 - 3x (answer).
