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| Equations of condition |
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| Study the following equations: |
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| a) 4x + 2 = 14 |
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| b) x - 7 = 5 - 2x |
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| c) 3a - 8 = a + 12 |
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| The equation 4x + 2 = 14 is true only when x = 3, |
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| Similarly, x - 7 = 5 - 2x is true only when x = 4, and |
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| 3a - 8 = a + 23 is true only when a = 10. |
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| The two expressions (LHS and RHS) are equal only for a particular value of the variable (x). These equations are called equations of condition. An equation of condition is generally referred to as an equation. |
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Linear equations in two variables
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