Question 148310


{{{3x+4=4x-5}}} Start with the given equation.



{{{3x=4x-5-4}}} Subtract {{{4}}} from both sides.



{{{3x-4x=-5-4}}} Subtract {{{4x}}} from both sides.



{{{-x=-5-4}}} Combine like terms on the left side.



{{{-x=-9}}} Combine like terms on the right side.



{{{x=(-9)/(-1)}}} Divide both sides by {{{-1}}} to isolate {{{x}}}.



{{{x=9}}} Reduce.



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Answer:


So the answer is {{{x=9}}}