Question

x+y=1 and 3x+2y=8 substitution method

do if you know​

Answer 1

answer in the attachment

#vaishnavi

Answer 2

Answer -

x = 6

y = (-5)

Solution -

By substitution method,

$x + y = 1 \: - - - - (1)$

$3x + 2y = 8 \: - - - - (2)$

From Equation (1),

$x + y = 1$

$\longmapsto \: x = 1 - y \: - - - - (3)$

Now, put the value of x in Equation (2),

$3x + 2y = 8$

$\longmapsto3(1 - y) + 2y = 8$

$\longmapsto3 - 3y + 2y = 8$

$\longmapsto3 - y = 8$

$\longmapsto - y = 8 - 3$

$\longmapsto \boxed{ y = - 5}$

Put the value of y in Equation (3),

$x = 1 - y$

$\longmapsto \: x = 1 - ( - 5)$

$\longmapsto \boxed{x = 6}$

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