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kozerog [31]
3 years ago
15

How do you solve X + x/7 + (x +x/7 ) = 60?

Mathematics
1 answer:
kozerog [31]3 years ago
6 0
x+ \frac{x}{7} +(x+ \frac{x}{7} )=60

Remove parentheses (a)= a

x+ \frac{x}{7} +x+ \frac{x}{7}

Group like terms:

x+ \frac{x}{7} +x+x

Add similar elements:

\frac{x}{7} + \frac{x}{7} =2 \frac{x}{7}

= 2 \frac{x}{7} +x+x

Add similar elements:

x+x = 2x

2 \frac{x}{7} +2x

Multiply 2 \frac{x}{7}

=  \frac{2x}{7} +2x

\frac{2x}{7} +2x = 60

Multiply both sides by 7 :

\frac{2x}{7} *7+2x*7 = 60*7

16x = 420

x = 420 / 16

x =  \frac{105}{4}

hope this helps!
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