Mathematics, 25.09.2019 04:00 deontehiggins42

(being timed )
which statement correctly explains how andre could find the solution to the following system of linear equations using elimination?
8s-9t=15
7s-2t=12
a. multiply the first equation by –7 and the second equation by 8, and then subtract.
b. multiply the first equation by -7 and the second equation by 8, and then add.
c. multiply the first equation by 2 and the second equation by 9, and then add.
d. multiply the first equation by –2 and the second equation by 9, and then subtract.

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(being timed )
which statement correctly explains how andre could find the solution to the f...