Algebra Linear Equations

Algebra Linear Equations

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Please press start, followed by press "Algebra - Linear Equations" , followed by flick from right to left on the page which says "Questions" (go to next page). To see the answer, touch 'Flip'

AN EQUATION is an algebraic statement in which the verb is "equals" = . An equation involves an unknown number, typically called x. Here is a simple example:
x + 64 = 100.
"Some number, plus 64, equals 100."
We say that an equation has two sides: the left side, x + 64, and the right side, 100.
In what we call a linear equation, x appears only to the first power, as in the equation above. A linear equation is also called an equation of the first degree.

Now, the statement -- the equation -- will become true only when the unknown has a certain value, which we call the solution to the equation.
We can find the solution to that equation simply by subtracting:
x = 100 − 64

= 36.
36 is the only value for which the statement "x + 64 = 100" will be true. We say that x = 36 satisfies the equation.
Now, algebra depends on how things look. As far as how things look, then, we will know that we have solved an equation when we have isolated x on the left.

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