Solve for y, z, a, b
b = \frac{7}{4} = 1\frac{3}{4} = 1.75
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a=4-\frac{9}{4}
Consider the third equation. Insert the known values of variables into the equation.
a=\frac{7}{4}
Subtract \frac{9}{4} from 4 to get \frac{7}{4}.
b=\frac{7}{4}
Consider the fourth equation. Insert the known values of variables into the equation.
y=4 z=4 a=\frac{7}{4} b=\frac{7}{4}
The system is now solved.
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