Solve for x
x=\frac{4000-5z-4y}{3}
Solve for y
y=-\frac{3x}{4}-\frac{5z}{4}+1000
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15x+25z=20000-20y
Subtract 20y from both sides.
15x=20000-20y-25z
Subtract 25z from both sides.
15x=20000-25z-20y
The equation is in standard form.
\frac{15x}{15}=\frac{20000-25z-20y}{15}
Divide both sides by 15.
x=\frac{20000-25z-20y}{15}
Dividing by 15 undoes the multiplication by 15.
x=\frac{4000-5z-4y}{3}
Divide 20000-20y-25z by 15.
20y+25z=20000-15x
Subtract 15x from both sides.
20y=20000-15x-25z
Subtract 25z from both sides.
20y=20000-25z-15x
The equation is in standard form.
\frac{20y}{20}=\frac{20000-25z-15x}{20}
Divide both sides by 20.
y=\frac{20000-25z-15x}{20}
Dividing by 20 undoes the multiplication by 20.
y=-\frac{3x}{4}-\frac{5z}{4}+1000
Divide 20000-15x-25z by 20.
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