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Please help me with these two questions!! ASAP!!
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Please help me with these two questions!! ASAP!!

Please help me with these two questions!! ASAP!!-example-1
User Spoorcc
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Check the picture below.


(2x+5)+75=180\implies 2x+80=180\implies 2x=100 \\\\\\ x=\cfrac{100}{2}\implies \boxed{x=50} \\\\[-0.35em] ~\dotfill\\\\ 3(x+4)=4x-9\implies 3x+12=4x-9\implies 12=x-9\implies \boxed{21=x}

Please help me with these two questions!! ASAP!!-example-1
User Hurelu
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