Incremental Calculator III for the Substituttion Method
Solve:
a
11
x + a
12
y = b
1
a
21
x + a
22
y = b
2
x +
y =
(eq.1)
x +
y =
(eq.2)
Solve the first equation for y:
y =
x +
(eq.3)
Reduce.
y =
x +
(eq.4)
Plug-in the y value into the second equation.
x +
(
x +
) =
(eq.5)
Reduce.
x +
x +
=
(eq.6)
Reduce.
x =
----> x =
(eq.7)
Plug the solution of x into equation 4.
y =
(
) +
(eq.8)
Reduce for your y value.
y =
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