kayloveatae1234 kayloveatae1234

17-01-2019
Mathematics

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39 - 7X = —4 ( 7X +7 ) + 4

- = minus sign

— = negative sign

Respuesta :

wegnerkolmp2741o wegnerkolmp2741o

17-01-2019

Answer:

x=-3

Step-by-step explanation:

39 - 7X = —4 ( 7X +7 ) + 4

Distribute

39 -7x = -28x -28 +4

Combine like terms

39 -7x =-28x -24

Add 28x to each side

39 -7x+28x =-28x+28x -24

39+21x=-24

Subtract 39 from each side

39-39+21x = -24 -39

21x = -63

Divide by 21

21x/21 = -63/21

x = -3

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