x/60 + x/45 + 1,5 = 32/5
3x + 4x + 270 = 1152
7x + 270 = 1152
7x = 1152 − 270
7x = 882
x = 882/7
x = 126
\(\dfrac{x}{60}+\dfrac{x}{45}+1,5=\dfrac{32}{5}\)
\(\Leftrightarrow\)\(\dfrac{x}{60}+\dfrac{x}{45}+\dfrac{3}{2}=\dfrac{32}{5}\)
\(\Leftrightarrow\dfrac{3x}{180}+\dfrac{4x}{180}+\dfrac{270}{180}=\dfrac{1152}{180}\)
\(\Leftrightarrow7x+270=1152\)
\(\Leftrightarrow7x=882\)
\(\Leftrightarrow x=126\)