X+y=-1
3x-y=21
add them equations
x+y=-1
<u>3x-y=21 +</u>
4x+0y=20
4x=20
divide by 4
x=5
x+y=-1
5+y=-1
minus 5 both sides
y=-6
(x,y)
(5,-6)
D is answer
Answer:
The quotient of a number,g, and the sum of 3e and 5 is 6
Step-by-step explanation:
I hope it's help
7y - 23 + 23x -16 + 8x - 21
31x + 7y - 60
What is the original problem equal to? You can't go any further unless you know.
Answer:
log₉2873 ≈ 3.6242
Step-by-step explanation:
First off all you can estimate by applying a fundamental property of a logarithm
Answer:
2y^2 -4y -24
Step-by-step explanation:
start by expanding the first term, also known as multiplying the 3
3(2y-8) to get 6y-24
then -2y and (5-y) to get -10y and 2y^2
(dont forget to include the negatives when mulitiplying it out)
then combine like terms to get
2y^2 - 4y - 24