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Question
Express the following equation in the form in which x is dependent variable.
3x + 7y = 12
Sum
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Solution
Given: 3x + 7y = 12
Step-wise calculation:
1. Subtract 7y from both sides:
3x = 12 – 7y
2. Divide both sides by 3:
`x = (12 - 7y)/3`
Or equivalently `x = 4 - (7/3)y`
⇒ `x = (12 − 7y)/3`
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