A)8×/9-0,=×+0,5b)×+1/3+3×-5/4=1c)3×+3/4-2×-5/8=5×+1/2d)3×/2-2×...
A)8×/9-0,=×+0,5
b)×+1/3+3×-5/4=1
c)3×+3/4-2×-5/8=5×+1/2
d)3×/2-2×+7/6=4×8/3
e)0,75×-×-5/2=7/8
f)7×/9-4×+15/18=2×-1/6
b)×+1/3+3×-5/4=1
c)3×+3/4-2×-5/8=5×+1/2
d)3×/2-2×+7/6=4×8/3
e)0,75×-×-5/2=7/8
f)7×/9-4×+15/18=2×-1/6
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(a) 2x + 3 = 15
2x = 15 - 3
2x = 12
x = 12 ÷ 2
x = 6
(b) 7x - 1 = 13
7x = 13 + 1
7x = 14
x = 14 ÷ 7
x = 2
(c) 2x - 4 = 3
2x = 3 + 4
2x = 7
x = 7 ÷ 2
x = 3,5
(d) 4x + 2 = -18
4x = -18 -2
4x = -20
x = -20 ÷ 4
x = -5
(e) 5x - 2 = 7 + 6
5x - 2 = 13
5x = 13 + 2
5x = 15
x = 15 ÷ 5
x = 3
(f) 10x + 1 = -4 -5
10x + 1 = -9
10x = -9 -1
10x = -10
x = -10 ÷ 10
x = -1
Espero ter ajudado.
Bons estudos!
2x = 15 - 3
2x = 12
x = 12 ÷ 2
x = 6
(b) 7x - 1 = 13
7x = 13 + 1
7x = 14
x = 14 ÷ 7
x = 2
(c) 2x - 4 = 3
2x = 3 + 4
2x = 7
x = 7 ÷ 2
x = 3,5
(d) 4x + 2 = -18
4x = -18 -2
4x = -20
x = -20 ÷ 4
x = -5
(e) 5x - 2 = 7 + 6
5x - 2 = 13
5x = 13 + 2
5x = 15
x = 15 ÷ 5
x = 3
(f) 10x + 1 = -4 -5
10x + 1 = -9
10x = -9 -1
10x = -10
x = -10 ÷ 10
x = -1
Espero ter ajudado.
Bons estudos!
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