Question

Answer the following questions CORRECTLY I will know if this is wrong. I WILL REPORT ANY INCORRECT ANSWERS!

Answer 1

Answer by JKismyhusbandbae:

$\mathrm{Add\:}5\mathrm{\:to\:both\:sides}\\\frac{1}{4}b+\frac{2}{5}b-5+5=-3+5\\Simplify\\\frac{1}{4}b+\frac{2}{5}b=2\\\mathrm{Find\:Least\:Common\:Multiplier\:of\:}4,\:5:\quad 20\\\mathrm{Multiply\:by\:LCM=}20\\\frac{1}{4}b\cdot \:20+\frac{2}{5}b\cdot \:20=2\cdot \:20\\Refine\\5b+8b=40\\13b=40\\\mathrm{Divide\:both\:sides\:by\:}13\\\frac{13b}{13}=\frac{40}{13}\\Simplify\\b=\frac{40}{13}$