angelacevessolis angelacevessolis

03-09-2019
Mathematics

contestada

in 20 years a child's age will be 7 years less than four times her current age. find the child's current age

Respuesta :

vaarun5 vaarun5

03-09-2019

X + 20 = 4X - 7
X = Current Age
3X = 27
X = 9
The child’s current age is 9 years old

Answer Link

Vividerla Vividerla

03-09-2019

Answer:

They are 9

Step-by-step explanation:

Their current age will be represented by x

x + 20 = 4x - 7

-20 -20

x = 4x - 27

-4x -4x

-3x = -27

—— ——

-3 -3

x = 9

Answer Link

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