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Original Question
solve by the substitution method 3x+5y=21 x=51-9yAsked by Sam
solve by the substitution method
3x+5y=21
x=51-9y
3x+5y=21
x=51-9y
Answers
PsyDAG
Substitute 51 -9y for x in the first equation and solve for y. Put that value in the second equation to find x. Check by putting both values into the first equation.