multiply (7xy+yz+zx) (-10xyz)
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Yes please... Someone help him/her...
Answered by
2
Answer:
26.
Step-by-step explanation:
As it is a straight line, the sum of angles will be 180
Then,
(3x + 20) + (2x + 30) = 180
5x + 50 = 180
x = 130/5
x = 26
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