Solve for x
x=\frac{100-17z-9y}{7}
Solve for y
y=\frac{100-17z-7x}{9}
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-7x-9y-17z=-100
Subtract 100 from both sides. Anything subtracted from zero gives its negation.
-7x-17z=-100+9y
Add 9y to both sides.
-7x=-100+9y+17z
Add 17z to both sides.
-7x=9y+17z-100
The equation is in standard form.
\frac{-7x}{-7}=\frac{9y+17z-100}{-7}
Divide both sides by -7.
x=\frac{9y+17z-100}{-7}
Dividing by -7 undoes the multiplication by -7.
x=\frac{100-17z-9y}{7}
Divide -100+9y+17z by -7.
-7x-9y-17z=-100
Subtract 100 from both sides. Anything subtracted from zero gives its negation.
-9y-17z=-100+7x
Add 7x to both sides.
-9y=-100+7x+17z
Add 17z to both sides.
-9y=7x+17z-100
The equation is in standard form.
\frac{-9y}{-9}=\frac{7x+17z-100}{-9}
Divide both sides by -9.
y=\frac{7x+17z-100}{-9}
Dividing by -9 undoes the multiplication by -9.
y=\frac{100-17z-7x}{9}
Divide -100+7x+17z by -9.
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Simultaneous equation
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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