jewelswifey jewelswifey
  • 28-08-2016
  • Mathematics
contestada

8x+5=3x+15 how t ok solve and explain each step

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dalendrk
dalendrk dalendrk
  • 28-08-2016
8x + 5 = 3x + 15    |subtract 5 from both sides

8x = 3x + 10    |subtract 3x from both sides

5x = 10    |divide both sides by 5

x = 2
Answer Link
alegrecohen13 alegrecohen13
  • 28-08-2016
Need to put the numbers together and the x's together. When you move whatever across the equal sign it changes its sign. For example, if something is positive and you move it over the equal sign it becomes negative. After that you need to solve both sides and then divide the answer. 

8x+5=3x+15
8x-3x+5=15
8x-3x=15-5
5x=10
x=10/5
x=2

Answer Link

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