Question

x/3+1=7/15,find x,please answer fast
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Answer 1

Answer:

x=1.6

Step-by-step explanation:

x/3+1=7/15

x+3/3=7/15

15x+45=21

15x=24x=24/15

x=8/5=1.6

Answer 2

Answer:

$\huge\boxed{x=-\dfrac{8}{5}=-1\dfrac{3}{5}=-1.6}$

Step-by-step explanation:

$\dfrac{x}{3}+1=\dfrac{7}{15}\qquad|\text{subtract}\ 1=\dfrac{15}{15}\ \text{from both sides}\\\\\dfrac{x}{3}=\dfrac{-8}{15}\qquad|\text{corss multiply}\\\\(15)(x)=(3)(-8)\\\\15x=-24\qquad|\text{divide both sides by 15}\\\\x=\dfrac{-24}{15}\\\\x=-\dfrac{24:3}{15:3}\\\\x=-\dfrac{8}{5}$