# Basic algrbra. Foundation level.

Basic algebra.

foundation level only (:

Its just revision

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- Created by: mercede
- Created on: 21-05-09 13:06

First 141 words of the document:

Q. Find the value of x.

2x + 5 = 25

The = is treated like a mirror line.

So the +5 becomes -5 when it moves over the other side.

25 5 = 20

So the equation becomes

2x = 20

To get x on its own we need to divide by 2

20 divide by 2 = 10

ANSWER x = 10

Q. Find the value of x.

4x 10 = 30

The = is treated like a mirror line.

So the -10 becomes +10 when it moves over to the other side.

30 + 10= 40

So the equation becomes

4x = 40

To get x on its own we need to divide by 4

40 divide by 4 = 10

ANSWER x = 10

Practice Q 1

Find the value of x:

3x -4 = 20

ANSWER x =

Practice Q 2

Find the value of x:

5x +12 = 52

ANSWER x =

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