3 years ago

Solve for n nn. 7 n − 4 = 31

Mathematics

2 answers:

never [62]3 years ago

8 0

${ \longmapsto{ \sf{7n - 4 = 31}}}$

${ \longmapsto{ \sf{7n = 31 + 4}}}$

${ \longmapsto{ \sf{7n = 35}}}$

${ \longmapsto{ \sf{n = \frac{35}{7} }}}$

${ \longmapsto{ \sf{n = \cancel\frac{35}{7} }}}$

${ \color{blue}{ \longmapsto{ \sf{n = 5 }}}}$

makkiz [27]3 years ago

5 0

Answer: 5

Step-by-step explanation:

5x7=35

35-4=31

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