brodoswaggins202 brodoswaggins202
  • 21-09-2018
  • Mathematics
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3 times a sum of some number plus 3 = 5 times a number -5

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watwolves8855
watwolves8855 watwolves8855
  • 21-09-2018

We will use the commutative property: [tex]a(b+c) = ab+ac[/tex]

[tex]3(x+3)=5x-5[/tex]

[tex]=3x+9=5x-5[/tex]

[tex]=3x+9+5=5x-5+5[/tex] Isolate number

[tex]=3x+14=5x[/tex]

[tex]=3x-3x+14=5x[/tex] Isolate x

[tex]14=5x[/tex]

[tex]14/5=5x/5[/tex]

[tex]2.8=x[/tex]

Therefore, the answer is 2.8.

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