ckelly8093 ckelly8093
  • 13-10-2018
  • Mathematics
contestada

What is the answer and work too the equation 4x+9+3x=30

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help8760 help8760
  • 13-10-2018
rearrange the like terms first.
1. 4x+3x+9=30

add the like terms
2. 7x+9=30

move the 9 to the other side.
3. 7x=30-9

subtract them
4. 7x=21

divide bothers sides by 7
5.
[tex] \frac{7x = 21}{7} [/tex]

which it will end with the result of
x=3
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