Question

If mmc096-2.jpg = 5x – 8, mmc096-3.jpg = 3y, and mmc096-4.jpg = 132, find the values of x and y.

Answer 1

mmc096 -2.jpg = 5x-8
mmc096 -3.jpg = 3y
mmc096 -4.jpg = 132
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rewrite equations:
a - 2b = 5x - 8
a - 3b = 3y
a - 4b = 132
then:
-4b = 132 - a
substitute:
a - (132 -a ) = 3y
a - 132 + a = 3y
132 = 3y
y = 132/3
y = 44

Answer 2

x 2 (2a -8b) = 10x -16
but a-4b = 132 or a = 132 +4b
i.e 2[(132 - 4b)] -8b) = 10 x -16

Answer 3

should be simple enough to solve from there