2y = x + 3 5y = x - 7 What is the solution set of the given system?
2 answers:
<span>2y = x + 3 then x = 2y - 3
5y = x - 7 then x = 5y + 7
so
</span>2y - 3 = 5y + 7
2y - 5y = 7 + 3
-3y = 10
y = -10/3
y = -3 1/3
<span>2y = x + 3
</span>2 (-10/3) = x + 3
-20/3 - 3 =x
-29/3 = x
-9 2/3 =x
or
x = -9 2/3
solutions: x = -9 2/3 and y = -3 1/3
Answer: the solution set would be {(-29/3, -10/3)}
Step-by-step explanation:
You might be interested in
Answer:
1/2
Step-by-step explanation:
Answer:
With the increase of the value of a ,the value of the expression 20+a will also increase.
Step-by-step explanation:
The point (-1,2) is in quadrant 2
Answer:
The admission for each person costs 27 dollars.
Step-by-step explanation:
5(x + y) - 3(x - y)
5x + 5y - 3x + 3y
5x - 3x + 5y + 3y
2x + 8y
5(x + y) - 3(x - y) = 2x + 8y
