using the substitution method find the solution to each system of equation...
1.
2x+3y=7
6x-y=1
idk if i got it right but i got y=2.5 and x=1/4 it seems wrong though...
Hello, mathnoobie25!
Using the substitution method, solve:
idk if i got it right but i got y=2.5 and x=1/4 it seems wrong though.
. . Don't you know how to check your answers?
Solve one of the equations for one of its variables.
. . (Try to choose the easiest one.) *
Solve equation (2) for (3)
Substitute into (1): .
Solve for
Substitute into (3): .
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Check
Substitute your answers into the original equations
. . and see if you get true statements.
Substitute into (1).
. . . . . Is this true?
We have: . . . . Yes!
Substitute into (2).
. . . . . Is this true?
We have: . . . . Yes!
Therefore, our answers are correct.
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*
We could, say, solve (1) for
. . But why introduce fractions when we can avoid them?