3 years ago

Perform the

Mathematics

1 answer:

vlabodo [156]3 years ago

5 0

Answer:

$Sum = 5x$

Step-by-step explanation:

Given

1: 5x + 20

2: Opposite of 20

Required

Find their sum

Suppose that a is a number; The opposite of a is -a. So, the opposite of 20 is -20.

Having said that:

The required sum is:

$Sum = 5x + 20 + (-20)$

Remove bracket

$Sum = 5x + 20 -20$

$Sum = 5x$

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