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OpenStudy (anonymous):
Solve using any appropriate method. 2s-13t=120 -14s+91t=-840
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OpenStudy (anonymous):
using simultaneous eq. you can solve this
OpenStudy (anonymous):
given -14s + 91t = -840 ---------> 1 2s - 13t = 120 ---------> 2 multiply eqn 2 by 7 14s - 91t = 840
OpenStudy (anonymous):
just times the top equation by 7 then subtract from the below equation
OpenStudy (anonymous):
u wont get solutions , these eqns have infinite solutions
OpenStudy (anonymous):
Use Elimination Method
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OpenStudy (anonymous):
For that Multiply the 1st equation by 7
OpenStudy (anonymous):
It all sums to zero.....
OpenStudy (anonymous):
yaaa
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