Math, asked by channameet35521, 2 months ago

if 3 ( x - 5) -5 (x-2) = 0 then the value of x is ____ *​

Answers

Answered by armanmiddya498
1

Answer:

3x-15-5x+10=0 3x-5x-15+10=0 -2x-5=0 -2x=5.... x= 5/2 x= 2.5

Answered by ItzBrainlyBeast
19

\maltese\LARGE\textsf{\underline{ SoLuTioN :-}}

\large\textsf{                                                               }

 :\longrightarrow\; \; \sf3 \: ( \: x \:  \:  -  \:  \: 5 \:  ) \:  \:  -  5 \:  \: ( \: x \:  \:  -  \:  \: 2 \: ) \:  \:  =  \:  \: 0 \\  \\  \\  :\longrightarrow\; \; \sf3x \:  \:  \:  -  \:  \: 15 \:  \:  \:  -  \:  \: 5x \:  \:  +  \:  \: 10 \:  \:  =  \:  \: 0 \\  \\  \\:\longrightarrow\; \;   \sf3x \:  \:  \:  -  \:  \:  \: 5x \:  \:  \:  -  \:  \: 15 \:  \:  +  \:  \: 10 \:  \:  =  \:  \: 0 \\  \\  \\:\longrightarrow\; \;  \sf  -  \:  \: 2x \:  \:  \:  -  \:  \: 5 \:  \:  =  \:  \: 0 \\  \\  \\:\longrightarrow\; \;   \sf -  \:  \: 2x \:  \:  =  \:  \: 5 \\  \\  \\:\longrightarrow\; \;   \boxed{  \sf \:  \color{red}x \:  \:  =  \:  \:  \cfrac{ - 5}{  2} }

\large\textsf{                                                               }

\maltese\LARGE\textsf{\underline{ AlGeBrAiC fOrMuLaS :-}}

\large\textsf{                                                               }

\boxed{\begin{array}{ c  }\qquad\tt{:}\longrightarrow\large\textsf{( a + b )² = a² + b² + 2ab}\\\\\\\qquad\tt{:}\longrightarrow\large\textsf{( a - b )² = a² + b² - 2ab}\\\\\\\qquad\tt{:}\longrightarrow\large\textsf{a² - b² = ( a + b ) ( a - b )}\\\\\\\qquad\tt{:}\longrightarrow\large\textsf{a² + b² = ( a + b )² - 2ab}\\\\\\\qquad\tt{:}\longrightarrow\large\textsf{a³ + b³ = ( a + b ) ( a² - 2ab + b² )}\\\\\\\qquad\tt{:}\longrightarrow\large\textsf{a³ - b³ = ( a - b ) ( a² + ab + b² )}\\\\\\\qquad\tt{:}\longrightarrow\large\textsf{( a + b + c )² = a² + b² + c² + 2ab + 2bc + 2ac }\end{array}}

\large\textsf{                                                               }

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