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Find the value of 3x+2 when 7+x=5

7 + x = 5

x =5 - 7

x = -2

3x + 2 =

3(-2) + 2 =

-6 + 2 = - 4

Find the value of 3x+2 when 7+x=5

$7+x=5$

$x=-2$

$The \ value \ of \ \ \ {\color{blue}3x+2= 3\times(-2)+2}\ \ ist \ {\color{blue}-4}.$