If Anna gives 14 candies to her sister, she remains with 52. How many candies does Anna have ?
x-14=52|+14
x=52+14
x=66 candies
19.2 is 80% of 24. :) :) :)
This is a simultaneous system of two linear equations with two unknowns, as the number of unknowns equals the number of equations, we can solve it:
y = 5x + 21
y = -7x - 15
we can equate both equations, given the fact that both are equal to y:
y = y
5x + 21 = -7x - <span>15
</span>and solving for x:
5x + 7x = -15 - 21
12x = -36
x = -36/12
x = -3
then we substitute this result in the original equation:
y = 5x + <span>21
</span>y = 5(-3) + <span>21
</span>y = -15 + 21
y = 6
hence the solution is x = -3 and y = 6
Answer:
The answer is -22x² - 14x.
Step-by-step explanation:
You have to eliminate the brackets by multiplying :
Next you can simplify but there is no common terms in this expression so it remains the same.
Answer:
A.
Step-by-step explanation:
