solve for x. (x/3)+(3x/4)= 2

(^x/₃) + (^3x/₄) = 2

Well first let's make these fractions have the same denominator  

(^4x/₁₂) + (^9x/₁₂) = 2

Now combine the fractions together

^13x/₁₂ = 2

Multiply both sides by 12 to remove the fraction

13x = 12 * 2

13x = 24

Divide both sides by 13 so "x" is the subject

x = ²⁴/₁₃

x = 1.846 (to 3 d.p.)