Answer:
27 years old
Step-by-step explanation:
Let Alvin's age be x and Elga's age is y:
y - x = 15
x + y = 27
2y = 42 (use elimination method)
y = 21
x = 6 (plug it back into either equation)
Therefore Alvin is 6 and Elga is 27
x=8
Explanation:
the opposite side is 72, which means I have to make 9x end up equaling 72.
72÷9
////
72/9
=8
9×8=72
<u>Therefore</u>
the value of x is 8.
Me to I was doing the work but just lost it I will try again
8 and 32.
8 times 4 = 32
32 - 8 = 24
4x - x = 24.
^ ^
1 2
Answer:-4y^3-12y^2-7x
Step-by-step explanation:if you collect the liked terms it will add up to get that
