Determine as raízes ou soluções das equações do 1 grau com uma incógnita
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A) 5x-7=3x-10
5x-3x=-10+7
2x=-3
X=-3/2
B) 15x-13= -39 - 11x
15x+11x = -39 + 13
36x = -26
X= -26/36
C) 7x+11= 15+5x
7x-5x=15-11
2x=4
X= 4/2
X=2
D)21x+9 = 15x+33
21x-15x = 33-9
6x = 24
X=24/6
X=4
E) 16-11x +12 = -15x
-11x +15x= -12-16
4x= -28
X= 28/4
X=7
F)23 -2x = x+25
23-25= x+2x
-2=2x
-2/2=x
X=-1
5x-3x=-10+7
2x=-3
X=-3/2
B) 15x-13= -39 - 11x
15x+11x = -39 + 13
36x = -26
X= -26/36
C) 7x+11= 15+5x
7x-5x=15-11
2x=4
X= 4/2
X=2
D)21x+9 = 15x+33
21x-15x = 33-9
6x = 24
X=24/6
X=4
E) 16-11x +12 = -15x
-11x +15x= -12-16
4x= -28
X= 28/4
X=7
F)23 -2x = x+25
23-25= x+2x
-2=2x
-2/2=x
X=-1
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