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SCORPION-xisa [38]

2 years ago

12

Can someone help me solve this please! I need to find what N equals!

2 answers:

Veseljchak [2.6K]2 years ago

7 0

$\frac{12-n}{7} = - 1$
<span>Multiply cross
</span> $12-n = 7*(-1)$
$12-n = -7$
Number with incognito are to the left of the equality and numbers without incognito are to the right, remembering that when changing of side changes the signal.
$-n = -7-12$
$-n=-19$ simplify by (-1)
$\boxed{n = 19}$

Confirm that the solution is correct:

$\frac{12-n}{7} = - 1$
$\frac{12-19}{7} = - 1$
$\frac{-7}{7} = - 1$
$\boxed{-1=-1}(TRUE)$

Answer:
$\boxed{n = 19}$

Flura [38]2 years ago

6 0

[ (12 - n)/7 ] = -1

12- n = -7

-n = -19

n = 19

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