[tex]\frac{x+1}{12}-1=\frac{2x+3}{4} \\[/tex]
[tex]\frac{x+1}{12}-\frac{12}{12} =\frac{2x+3}{4}[/tex]
[tex]\frac{x+1-12}{12}=\frac{2x+3}{4}[/tex]
[tex]\frac{x-11}{12}-\frac{2x+3}{4}=0[/tex]
[tex]\frac{x-11}{12} -\frac{(2x+3)*3}{12}=0[/tex]
[tex]\frac{x-11}{12} -\frac{6x+9}{12}=0[/tex]
[tex]\frac{-5x-20}{12}=0[/tex]
[tex]\frac{-5x-20}{12}*12=0*12\\[/tex]
-5x-20=0
-5(x+4)=0
x+4=0
x=-4
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Answers & Comments
[tex]\frac{x+1}{12}-1=\frac{2x+3}{4} \\[/tex]
[tex]\frac{x+1}{12}-\frac{12}{12} =\frac{2x+3}{4}[/tex]
[tex]\frac{x+1-12}{12}=\frac{2x+3}{4}[/tex]
[tex]\frac{x-11}{12}-\frac{2x+3}{4}=0[/tex]
[tex]\frac{x-11}{12} -\frac{(2x+3)*3}{12}=0[/tex]
[tex]\frac{x-11}{12} -\frac{6x+9}{12}=0[/tex]
[tex]\frac{-5x-20}{12}=0[/tex]
[tex]\frac{-5x-20}{12}*12=0*12\\[/tex]
-5x-20=0
-5(x+4)=0
x+4=0
x=-4