Its D 15+15+15= 45 so there for it will be 45
Answer:
this wont work
Step-by-step explanation:
kidding will type awnser shortly
X=3
Explanation:
A straight line equals 180°, and they give you the one angle of 56°, so you know 56+ the other equation has to equal 180
56+4x+112=180
168+4x=180
Subtract 168 from both sides
4x=12
Divide 4 from both sides
X=3
You can check by filling it in.
56+4*3+112=
12+56+112=180
5(x-3)-x =
Multiply Everything In The Parentheses By 5
5x-15-x
Answer:
B. 3n
Step-by-step explanation:
n + n + n = 3n
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<u>3n</u> = n + n + n
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