Solve for x, y, z, a
a=70
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x=7
Consider the first equation. Insert the known values of variables into the equation.
z=10\times 7
Consider the third equation. Insert the known values of variables into the equation.
z=70
Multiply 10 and 7 to get 70.
a=70
Consider the fourth equation. Insert the known values of variables into the equation.
x=7 y=7 z=70 a=70
The system is now solved.
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