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Anika [276]
4 years ago
10

How to sustitute 6n+2f=736 and 10n+2f=920

Mathematics
2 answers:
Ahat [919]4 years ago
6 0
Notice that both equation has a 2f term in them

solve for 2f for both eqs.

2f= 736-6n
2f= 920-10n

since they both equal to 2f, yo can set them equal to each other

736-6n = 920-10n

and solve for n if you want
photoshop1234 [79]4 years ago
5 0
6n + 2f =736
10n +2f = 920

we are going to use the bottom equation to substitute

2f = -10n +920
f = -5n +460

plug it into the first equation

6n + 2(-5n + 460) = 736
-4n + 920 =736
-4n = -184
n =46

plug into either equation, we will use the second

10(46) + 2f = 920
460 + 2f = 920
2f = 460
f = 230

FINAL ANSWER

n = 46
f = 230

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