k2anharodee8Galas k2anharodee8Galas
  • 01-12-2016
  • Mathematics
contestada

What is the solution to the equation? 
 
5(8 + 7) = 5 • x + 5 • 7



 
A.
x = 1


 
B.
x = 5


 
C.
x = 7


 
D.
x = 8

Respuesta :

mbove685
mbove685 mbove685
  • 01-12-2016
D. X=8 distribute the 5 to the 8 and 7 which is 40 + 35 = 5 times x + 5 times 7 Multiply 5 times x and 5 and 7. Add left side to equal 75. Subtract 35 from both sides. Divide by 5 on both sides. Get x = 8 5(8+7) =5x+35 40+ 35 = 5x + 35 75= 5x +35 40= 5x X=8
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