Answer:
y = 2
Step-by-step explanation:
(1) x + 2y = 9
(2) x - y = 3
Subtract (2) from (1)
3y = 6
y = 2
The y-coordinate is y = 2.
The graphs of the two equations intersect at (5, 2).
Answer:
Go to desmos.com/calculator
Step-by-step explanation:
It has a graphing calculator and it super easy to plug in.
2/1 recipricol is when you exchange it or turn it around
Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
He has 42.80
Call x the amount that he will have
If he pays 12 to Rita, x = 42.80 - 12
If he receives 12 from Rita, x = 42.80 + 12
From the first equality
x - 42.8 = -12
From the second equality
x - 42.8 = +12
Then |x - 42.80| = 12
