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6x + 3 = x + 8

For equations such as this (it is called a linear equation as it contains only the first power of the unknown quantity) group all the terms containing the unknown on one side of the equation (preferably the left) and all the other terms on the other side.

Step 1) Subtract x from both sides

6x -x + 3 = x - x + 8 : 5x + 3 = 8

Step 2) Subtract 3 from both sides

5x + 3 - 3 = 8 - 3 : 5x = 5

Step 3) Divide both sides by 5

5x/5 = 5/5 : x = 1

The solution to this problem is x = 1

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15y ago

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