sally2004 sally2004

17-10-2018
Mathematics

contestada

Solve the following equation. Show your work.
3/4x-20=7

Respuesta :

kaylam348 kaylam348

17-10-2018

3/4x - 20 = 7

3x/4 - 20 = 7 Common denominator is 4.

4 (3x/4 - 20) = 4 x 7 Distribute the 4 though the parenthesis

4 x 3x/4 - 4 x 30 = 4 x 7

3x - 4 x 20 = 4 x 7

3x - 80 = 4 x 7

3x - 80 = 28 Add 80

3x = 28 + 80

3x = 108 Divide by 3

x = 108/3

x = 36

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