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
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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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Practice Q 1
Answer =
x=7
Practice Q 1
Answer =
x=8…read more

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