Home | Maths | Science | Tests

Equations

Exponential Equations

Exponential equations have the form
ax = b
where a and b are positive.

Example 1
2x = 32
2x =25
x = 5

Example 2
3x-2 = 27
3x-2 =33
x-2 = 3
x = 3+2 x = 5

Example 3
3(1+2x)=51
(1+2x) = 51/3
1+2x = 17
2x = 17-1
2x = 16
2x = 24
x = 4

Example 4
5x = 1
5x = 50
x = 0