Question

Twice a number subtracted from 15 is 7

Answer 1

x=11

Explanation:

let us name the unknown number: x

15 - 2x = 7

collect like terms,

-2x= 7 - 15

-2x= - 8

divide both sides by -2( coefficient of x)

-2x = -8

__ __

-2 -2

x= 4

Answer 2

4

Explanation:

15-2x=7

8=2x

4=x

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HOPE THIS HELPS <3