Question

Solve the linear equation graphically 3x-5y+1=0 and 2x-y+3=0

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

$\huge\blue{\mid{\fbox{\tt{Answer}}\mid}}$

$\tt\large\green\rightarrow$3x-5y+1=0 ---------(1)

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$\tt\large\green\rightarrow$2x-y+3=0 ----------(2)

multiplying eqn (2) by 5 we get

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$\tt\large\green\rightarrow$10x-5y+15=0 ---------(3)

subtracting eqn (3) from eqn (1) , we get

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$\tt\large\green\rightarrow$(3x-5y+1) - (10x-5y+15) =0-0

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$\tt\large\green\rightarrow$3x-5y+1-10x+5y-15=0

$\tt\large\green\rightarrow$-7x-14=0

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$\tt\large\green\rightarrow$-7x=14

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$\tt\large\green\rightarrow$x = -2

putting the value of x = -2 in eqn (2) we get

$\tt\large\green\rightarrow$2 (-2)-y+3=0

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$\tt\large\green\rightarrow$-4-y+3 =0

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$\tt\large\green\rightarrow$-y-1=0

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$\tt\large\green\rightarrow$-y=1

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$\tt\large\green\rightarrow$y = -1

x = -2 and y = -1