Answer:
5
Step-by-step explanation:
2021 is the answer ........
Assuming the given is: 5u^7 - 21u^7
Since both algebraic terms are identical (both are using u^7), we can subtract the coefficients directly, as in: 5 - 21 = -16
Therefore, 5u^7 - 21u^7 = -16u^7
Take the 4 out to get 4(x^2-12.5)
Answer:
-2.1x +14.4y
Step-by-step explanation:
Use the distributive property to eliminate parentheses. Then combine like terms.
(12.7y-3.1x)+5.9y-(4.2y-x)
= 12.7y -3.1x +5.9y -4.2y +x
= x(-3.1 +1) +y(12.7 +5.9 -4.2)
= -2.1x +14.4y
