# math

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(1/2)X - (1/2)Y = 4

1. Slove for X

2. Slove for Y

• math -

(1/2)X - (1/2)Y = 4 Multiply both sides by 2

x - y = 8

x = 8 + y

y = 8 + x

• math -

x = y+8
but
y = x-8

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