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Solve 4x + 6 = 3

This is an example of a linear equation.  

To find x we can apply the same operations to both sides in order to isolate x.

First we can subtract 6 from both sides.

This gives us 4x on the left and -3 on the right.

4x represents 4 being multiplied by x.

In order to get just x on the left hand side of the equation we must divide by 4.

We must also divide the right hand side by 4 to keep the equation balanced.

Diving by 4 gives us x = - 3/4.  

We have found x by applying the same operations to both sides to keep the equation balanced.  

Tom B. GCSE Computing tutor, GCSE Maths tutor, Mentoring HTML & CSS t...

6 months ago

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