1/3 x + y = 4
y = -1/3x + 4
6 = 4x + 9y
What is 4/9x + 2/3 =y
6y − 1.5x = 8
y = 1/4x + 4/3
or
y = 0.25x + 4/3
4.2x − 1.4y = 2.1
y = 3x - 15
3x + 1/5y = 7
y = -15x - 35
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