5x+4y = -14
3x+6y=6
can you explain how to do this

(-6, 4)

Step-by-step explanation:

There are two main ways you can solve a system of equations.  One is substitution, the other is elimination.

With substitution, you solve for one variable in one of the equations, then substitute that into the other equation.

With elimination, you add or subtract equations to eliminate a variable, then solve for the remaining variable.

Here, it is easier to use elimination.  Let's start by multiplying the first equation by 3 and the second equation by 5.

15x + 12y = -42

15x + 30y = 30

Now subtract the first equation from the second:

(15x + 30y) − (15x + 12y) = 30 − (-42)

18y = 72

y = 4

Now we can plug this into any of the original equations to find x.

5x + 4(4) = -14

5x + 16 = -14

5x = -30

x = -6

The solution is (-6, 4).  You can also show this graphically: desmos.com/calculator/mwdaztzhab

6,250

step-by-step explanation:

to get the area, multiply 360 by 160.(57,600)

to find out how many bags of fertilizer it will take, first figure out how many square feet one bag can hold. divide 1000 by 8(125) to get the unit rate(how many square feet one pound of fertilizer can hold)and multiply it by 50(6250). if i haven't made a mistake, that is the answer.

the answer is:

the answer is:

to solve the problem, we need to remember the quotient of power property, it's defined by the following relation:

if we have a quotienf of powers that have the same base, we need to keep the same base and subtract the exponent of the denominator power to the exponent of the numerator power.

so, we are given the expression:

then, calculating we have:

hence, the answer is:

have a nice day!