pacman23 pacman23

07-07-2018
Mathematics

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Solve and check the following linear equation. 6x-(4x-4)=14

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iuliaelisa15 iuliaelisa15

07-07-2018

6x-(4x-4)=14

We have to unfold the brackets and change the sign of each term.

6x - 4x + 4 = 14

2x + 4 = 14 | - 4

2x + 4 - 4 = 14 - 4

2x = 10 | :2

2x:2 = 10:2

x = 5

Verification : 6*5 -(4*5 - 4) = 14

                      30 - 20 + 4 = 14

                         10 + 4 = 14

                               14 = 14 - true

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