Question

X+a=3/4 How do I solve for x first then a

Answer 1

Answer:

$x + a = \frac{3}{4} \\ x = \frac{3}{4} - a$

for a:

$a = \frac{3}{4} - x$

Answer 2

$\\ \sf \longmapsto x+a=\dfrac{3}{4}$

$\\ \sf \longmapsto x=\dfrac{3}{4}-a$

$\\ \sf \longmapsto x=\dfrac{3-4a}{4}$

And

$\\ \sf \longmapsto a=\dfrac{3}{4}-x$

$\\ \sf \longmapsto a=\dfrac{3-4x}{4}$