jeslynm7457 jeslynm7457

24-08-2017
Mathematics

contestada

When 4 times a number is increased by 40, the answer is the same as when 100 is decreased by the number. find the number?

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apologiabiology apologiabiology

24-08-2017

the number is x

4x+40=100-x
add x to both sides
5x+40=100
minus 40 both sides
5x=60
divide both sides by 5
x=12
the number is 12

Answer Link

sticealana sticealana

23-10-2021

Answer:x equals 12

Step-by-step explanation:

4x+40=100-x

add x to both sides

5x+40=100

Subtract 40 on both sides

5x=60

divide both sides by 5

x=12

Answer Link

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