Question

For the equation 3x+y=7 when x=3 find the value of 'y'.​

Answer 1

Answer:

Given equation,

3x+y=7. (given that x=3)

=> 3*3 + y = 7

=> 9+y = 7

=> 9+y-7=0

=> 9-7 = y

=> 2 = y

Answer 2

$\Huge\tt\blue{answ{\mathcal{E}}r:}$

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$\bf{{\underline{To~solve}}:}$

• $\sf{3x+y=7}$ when $\sf{x=3}$

$\bf{{\underline{Solution}}:}$

$\sf 3x + y = 7 \\ \sf \longrightarrow 3(3) + y = 7 \: \: \: \: \: \\ \sf \longrightarrow 9 + y = 7 \: \: \: \: \: \: \: \: \: \: \: \\ \sf \longrightarrow y = 7 - 9 \: \: \: \: \: \: \: \: \: \: \:\\ \sf \longrightarrow y = \blue{ \underline{ \boxed{ \bf - 2}}}\: \: \: \: \: \: \: \: \: \: \: \:$

$\bf\therefore{{\underline{Required~answer}}:}$

$\sf \: \: \: \: \: \: \: \: \: y = \blue{ \underline{ \boxed{ \bf - 2}}}$