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3 years ago

PLEASE HELP ASAP PLEASE

Mathematics

1 answer:

Juliette [100K]3 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

-3x -3x

11= x + 8

- 8 - 8

3 = x

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

60x =8x + 26

-8x -8x

52x = 26

divide both sides by 52

x = 1/2

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