Answer:
The answer to this equation is x=2.
Step-by-step explanation:
9x-10=3x +9
You add 10 to both sides
9x-10+10 =3x+2+10
Simplify
9x+ 3x+12
Subract 3x from both sides
9x-3x=3x+12-3x
Simplify
6x=12
Divide both sides by 6
6x/6 = 12/6
<u>Your answer: x=2 </u>
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It's B) Associative Property of Addition.
Let p = the number of pennies
let q = the number of quarters
p + q = 23
0.01p + 0.25q = 3.11
Angle 1 is a "corresponding angle" with respect to the one marked 155°, so it has the same measure. The measure of angle 1 is ...
... 155°