SOLUTION: Solve the following system by the substitution method. Check the solution(s).
1/5x+2/3y=-43/5
3x−y=3
Algebra.Com
Question 1102036: Solve the following system by the substitution method. Check the solution(s).
1/5x+2/3y=-43/5
3x−y=3
Found 2 solutions by josgarithmetic, stanbon:
Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
The obvious first step could be use to substitute.
and you can continue from here.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Solve the following system by the substitution method. Check the solution(s).
1/5x+2/3y=-43/5
3x−y=3
-----
y = 3x-3
-------
Substitute for "y" and solve for "x"::
(1/5)x + (2/3)y = -43/5
(1/5)x + (2/3)(3x-3) = -43/5
(1/5)x + 2x-2 = -43/5
(11/5)x = -33/5
x = -3
---------
y = 3x-3 = -12
-----------------
Cheers,
Stan H.
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