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Soluções para a tarefa
Resposta:
A-) 6X = 2X + 16
6X - 2X = 16
4X = 16
X = 16 ÷ 4
X = 4
B-) 2X - 5 = X + 1
2X - X = 1 + 5
X = 6
C-) 2X + 3 = X + 4
2X - X = 4 - 3
X = 1
D-) 5X + 7 = 4X + 10
5X - 4X = 10 - 7
X = 3
E-) 4X - 10 = 2X + 2
4X - 2X = 2 + 10
2X = 12
X = 12 ÷ 2
X = 6
F-) 4X -7 = 8X - 2
4X - 8X = -2 + 7
-4X = 5
X = 5 ÷ 4
X = 1,25
G-) 2X + 1 = 4X - 7
2X - 4X = 7 - 1
-2X = 6
X = 6 ÷ 2
X = 3
H-) 9X + 9 + 3X = 15
9X + 3X = 15 - 9
12X = 6
X = 6÷12
X = 0,5
I-) 16X - 1 = 12X + 3
16X - 12X = 3 + 1
4X = 4
X = 4÷ 4
X = 1
J-) 3X - 2 = 4X + 9
3X - 4X = 9 + 2
-X = 11
X = 11
K-) 5X - 3 + X = 2X + 9
5X + X - 2X = 9 + 3
4X = 12
X = 12 ÷ 4
X = 3
L-) 17X - 7X = X + 18
17X - 7X - X = 18
9X = 18
X = 18 ÷ 9
X = 2
M-) X + X + 4 = 17 - 2X + 1
X + X + 2X = 17 + 1 - 4
4X = 14
X = 14 ÷ 4
X = 3,5
N-) X + 2X + 3 - 5X = 4X - 9
X + 2X - 5X - 4X = -9 - 3
-6X = -12
X = 12 ÷ 6
X = 2
O-) 5X + 6X - 16 = 3X + 2X - 4
5X + 6X - 3X -2X = -4 + 16
6X = 12
X = 12 ÷ 6
X = 2
P-) 5X + 4 = 3X - 2X + 4
5X - 3X + 2X = 4 - 4
4X = 0
X = 0 ÷ 4
X = 0