Answer:
(x, y) = (-8, 19)
Step-by-step explanation:
9x + 3y = -15
-4x - 3y = -25
(9x + 3y) + ((-4x) - 3y) = -15 + (-25)
5x = -40
x = -8.
So,
9x + 3y = -15
9 * (-8) + 3y = -15
-72 + 3y = -15
3y = 57
y = 19
Answer:
4n-9
Step-by-step explanation:
First group terms together- polynomial
(2ax-4x) + (2y-ay)
common factor for first term is 2x and the second term is y
2x(2a-4) + y(2-a)
2x(a-2) + y(2-a)
Add like terms which yields final answer
(2x+y)(2-a)
Answer: 5
Step-by-step explanation:
Terms are single numbers, variables, or the product of a number and variable.