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52 + 12x + 7 = 0

This is called a linear equation with one unknown (or one variable).

To solve it perform mathematical operations (addition, subtraction, multiplication, division) but whatever you do to one side of the equation, you must also do to the other side. Try to place the terms involving "x" on the left hand side and the remaining terms on the right hand side.

Subtract 52 from both sides.

52 - 52 + 12x + 7 = -52 : 12x + 7 = -52

Subtract 7 from both sides,

12x + 7 - 7 = -52 -7 : 12x = -59

If appropriate, divide both sides by 12

12x/12 = -59/12 : x = -59/12

If required, the answer could be converted into a decimal number :

x = -59/12 = -4.917 (3dp)

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Q: How do I work out 52 plus 12x plus 7 equals 0?
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