JuliaAndJules JuliaAndJules
  • 02-12-2016
  • Mathematics
contestada

What is the number that represents X in 12x + 5 = 8x + 21?

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Аноним Аноним
  • 02-12-2016
I hope this helps you



12x-8x=21-5


4x=16


x=4
Answer Link
goldenfxndoms
goldenfxndoms goldenfxndoms
  • 02-12-2016
X is equal to 4 because:
-
Step 1: 12*4+5
Step 2: 48+5=53
This is the answer for the first equation, next, you find the answer to the next equation.
Step 3: 8*4+21
Step 4: 32+21=53
-
53 is equal to 53, therefore x=4.
Answer Link

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