Question

250 -10.(42 - 3x) :15 =244

Answer 1

\(250-10.\left(42-3x\right):15=244\)
\(\Rightarrow10.\left(42-3x\right):15=250-244\)
\(\Rightarrow10.\left(42-3x\right):15=6\)
\(\Rightarrow10.\left(42-3x\right)=6.15\)
\(\Rightarrow10.\left(42-3x\right)=90\)
\(\Rightarrow42-3x=90:10\)
\(\Rightarrow42-3x=9\)
\(\Rightarrow3x=33\)
\(\Rightarrow x=11\)

 

Answer 2

250-10.(42-3x):15=244

10.(42-3x):15=250-244

10.(42-3x):15=6

10.(45-3x)=6.15

10.(45-3x)=90

42-3x=90:10

42-3x=9 

3x=42-9

3x=33

  x=33:3

  x=11