qual o resultado, por favor? 10 pontos!
9x - 2 = 4x + 18
9x - 4x = 18 + 2
5x = 20
x = 4
x = 20/ 4
x = 5
Sueli:
9X-2=4X+18
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Verified answer
9x - 2 = 4x + 18
9x - 4x = 18 + 2
5x = 20
x = 4
9x - 4x = 18 + 2
5x = 20
x = 20/ 4
x = 5
Sueli:
9X-2=4X+18
9x - 4x = 18 + 2
x = 4