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professor190 [17]
2 years ago
13

PLEASE HELP ASAP PLEASE

Mathematics
1 answer:
Juliette [100K]2 years ago
3 0

Answer: #20, x = 3

              #21,  x = 1/2

Step-by-step explanation:

#20) x + 4 + x + 2+ x + 5  = x + 3 +x+3+x+1+x+1

3x + 11 = 4x + 8

<u>-3x           -3x</u>

      11= x + 8

  <u>   - 8       - 8</u>

     3   =   x

#21)  12x(5) = 6x + 9 + x + 10 + x + 7

         60x =8x + 26

       <u>   -8x    -8x</u>

         52x = 26

 divide both sides by 52

         x = 1/2

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