Solve for y, z, a
a=5
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y=-y+70
Consider the first equation. Variable y cannot be equal to 70 since division by zero is not defined. Multiply both sides of the equation by -y+70.
y+y=70
Add y to both sides.
2y=70
Combine y and y to get 2y.
y=\frac{70}{2}
Divide both sides by 2.
y=35
Divide 70 by 2 to get 35.
y=35 z=5 a=5
The system is now solved.
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