Examine the system of equations. which is an equivalent form of the first equation that when added to the second equation eliminates the y terms?
-5/8x + 3/4y = 12
8x + 12y = 11
a. 10x - 12y = -192
b. - 10x + 12y = 192
c. 5x - 12y = 96
d. - 5x + 12y = 96

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take good notes.

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use mnemonics and other tricks.

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note: the best i know.

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl