Solve for x, y, z, a
a=12
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5\times 3-3=y
Consider the first equation. Insert the known values of variables into the equation.
15-3=y
Multiply 5 and 3 to get 15.
12=y
Subtract 3 from 15 to get 12.
y=12
Swap sides so that all variable terms are on the left hand side.
z=12
Consider the third equation. Insert the known values of variables into the equation.
a=12
Consider the fourth equation. Insert the known values of variables into the equation.
x=3 y=12 z=12 a=12
The system is now solved.
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