Question

A+2x-7/4x=2x+3a+1 solve for x

Answer 1

Remember, you can do anything to an equation as long as you do it to both sides

we hate fractions so times both sides by 4
4A+8x-7x=8x+24a+8
combine like terms
4A+x=8x+24a+8
minus x both sides
4A=7x+24a+8
minus (24a+8) from both sides
4A-24a-8=7x
divide both sides by 7
$\frac{4A-24a-8}{7}=x$
$x=\frac{4A-24a-8}{7}$