What is the solution to this system of linear equations?
2 answers:
(7,3)
Step-by-step explanation:
X= -2+3y
....
-2+3y-3y=-2
-2+3y+3y=16
.......
6y=18
...
y=3
x=7
Given,
x - 3y = -2
x + 3y = 16
so,
solve a equation of x and we got,
x = 3y - 2
now,
x = 3y - 2
x + 3y = 16
now, substitute the given x value into the equation x + 3y = 16 so we got,
(3y - 2) + 3y = 16
solve a equation to y so
y = 3
substitute the given y value into the x equation
so we got,
x = 3y - 2
= x = 3×3 - 2
= x = 7
so x = 7 and y = 3
so option A is correct!
You might be interested in
Answer:
(6 x $1.25) + (20 x $0.80)
The answer is one hundred
Answer:
144
Step-by-step explanation:
12 times 12
Answer:
Chef Barber will now cook 50 meals first and The new y-intercept will change the result.
Step-by-step explanation:
I just did on edge
The answer is A because 2time 2 is 4-2 =2 and then 120times 2 =240