B) X = 1
C) X = 10
D) X = 5
Explicação passo-a-passo:
B) 2x + 25 = 33-6
2x + 25 = 27
2x= 27 - 25
2x = 2
x = 2/2 = 1
C) 5x+2x+10=80
7x= 80 - 10
7x = 70
x = 70/7 = 10
D) 2 + 5x - 3x = 12
2x = 12 - 2
2x = 10
x = 10/2 = 5.
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B) X = 1
C) X = 10
D) X = 5
Explicação passo-a-passo:
B) 2x + 25 = 33-6
2x + 25 = 27
2x= 27 - 25
2x = 2
x = 2/2 = 1
C) 5x+2x+10=80
7x= 80 - 10
7x = 70
x = 70/7 = 10
D) 2 + 5x - 3x = 12
2x = 12 - 2
2x = 10
x = 10/2 = 5.