What you're going to do is plug in y=2x+5 into the 3y ( getting rid of the y to solve for x only) so that gives you...... 6x-3(2x+5)=6. Next, you're going to multiply -3 to 2x and 5. Now it gives you..... 6x-6x-15=6. The x's cancel out leaving the equation with -15=6 making it an Inconsistent system also known as a No Solution system.
Answer:
c
Step-by-step explanation:
Step-by-step explanation:
-5x+8y=-4
6x-8y=-12 8y and 8x cancel out
x=-16
To solve for y, substitute x=-16 back into the first equation
-5(-16)+8y=-4
80+8y=-4
8y=-84
y=-10.5
Set up an equation for each store by multiplying the cost of the basketball by the number of basketballs bought (b) and add the cost of the hoop:
Hoops House: total = 20b + 200
Baller Basement: total = 15b + 250
Now to solve for b, set the two equations equal to each other:
20b + 200 = 15b + 250
Subtract 15b from both sides:
5b + 200 = 250
Subtract 200 from both sides:
5b = 50
Divide both sides by 5:
B = 10
The answer is 10 basketballs
4(3n+7)=16
12n+28=16
12n=-12
n=-1
