nickel1144
nickel1144
22-10-2016
Mathematics
contestada
-2x + 7(x-7)= -84 What does x equal?
Respuesta :
Аноним
Аноним
22-10-2016
i hope this helps you
-2x+7x-7.7= -84
5x-49= -84
5x= -84+49
5x= -35
x = -7
Answer Link
Amphitrite1040
Amphitrite1040
22-10-2016
-2 × X + 7 × (X - 7) - (-84) = 0
(-2X + 7 × ( X - 7))) - -84 = 0
5X + 35 = 5 × ( X + 7)
5 × ( X + 7) = 0
Solve → 5 =0
X+ 7 = 0
Subtract "7" from both sides of the equation
Final answer
→ "x" = -7
Answer Link
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