Question

if 2p+5=20, then 2p-5=

Answer 1

If :  $2p+5=20$

$2p=15\Rightarrow p=\dfrac{15}{2}$

Then : $2p-5=15-5=10$

Answer 2

The value of the equation 2p - 5 is 10.

How to find the variable in an equation?

The variable p in an equation can be found as follows;

2p + 5 =20

subtract 5 from both sides

2p + 5  - 5 = 20 - 5

2p = 15

divide both sides by 2

2p / 2 = 15 / 2

p = 7.5

Therefore, the equation 2p - 5 is as follows

2p - 5 = 2(7.5) - 2 = 15 - 5 = 10

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