Solve for x, y, b
x=1
y=1.125
b=3.625
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2\times 1-5\times 1.125+b=0
Consider the third equation. Insert the known values of variables into the equation.
2-5\times 1.125+b=0
Multiply 2 and 1 to get 2.
2-5.625+b=0
Multiply -5 and 1.125 to get -5.625.
-3.625+b=0
Subtract 5.625 from 2 to get -3.625.
b=3.625
Add 3.625 to both sides. Anything plus zero gives itself.
x=1 y=1.125 b=3.625
The system is now solved.
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