Total budget=Donations+Taxes+Food+Clothing+Housing+Transportation+ Insurance+Savings+Recreation and miscellaneous Total budget=$1,620+$1,620+$3,510+$2,700+$1,350+$675+$675+$675+$675 Total budget=$13,500
There are a few ways to solve this. The method I will use is the substitution method. Since they give us a "y = " statement, we can replace the y in the second equation with what it gives us to the right of the equal sign.
- 3x + 6(- 2x - 1) = 24
Simplify by using the distributive property.
- 3x + 6(- 2x) + 6(- 1) = 24 - 3x - 12x - 6 = 24.
Combine like terms
- 15x - 6 = 24
Add 6 to each side.
- 15x = 30
Divide both sides by - 15 to isolate variable X
x = 30 / - 15 x = - 2.
Now plug in the x-value we've found back into the first equation.