If this is algebra then I can help
You would take the -9 and add 9 to it, that would cancel out the -9 but you would have to put it on the opposite side of the equation, that would show it as this: y=41+9, then you would simplify it to this: y=50
Step-by-step explanation:
Let Kim's sister age be x.
Kim's age 2x
<u>According to the question</u> :
2x + x = 42
X = 14
Kim's age = 28 years
Kim's sister's age = 14 years
Answers A and <span>D
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</span><span>9x − 3(x+8) [distribute] = 9x − 3x − 24 = 6x − 24 [combine like terms]
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<span>8(x−3)−2x = [distribute] 8x−24−2x = 6x−24 [combine like terms] </span>
Step-by-step explanation:
A quadrilateral has (four) sides and (four) angles
A pentagon has (five) sides and (five) angles
A cube (six) faces
hope this helps you.
