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Mathematics
Cortez Burnett
31 August, 16:59
Rewrite 7x + 4 = x - 2 as a system.
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Matthew Marks
31 August, 19:50
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7x + 4 = x - 2 - - (1)
To rewrite the equation above as a system, we simply let (1) be equal to y, i. e.
7x + 4 = x - 2 = y - - (2)
Recall from the rule of transitivity: If a = b = c, then this implies that a = c & b = c. From this, we have (2) to be expressed as
y = 7x + 4 - - (i)
y = x - 2 - - (ii)
Note: (i) & (ii) are both regarded as a system of linear equation which can be evaluated simultaneously.
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