Question

simplifique e resolva as equações a seguir:
A- 3(m+4)+8=2+m
B- 6X+14+3=2X+158-X
C-27Z-15-3z=18z+185-2z
D- 7(m-14)+20=5(m+3)-15
E-11(X+2)-410=2(2X-4)+89 POR FAVOR ME AJUDEM

Answer 1

Olá,

Vamos lá,

A- 3(m+4)+8=2+m
3m+12+8=2+m
3m-m=2-12-8
2m=-18
m=-18/2
m=-9

B- 6X+14+3=2X+158-X
6x-2x+x=158-14-3
5x=141
x=141/5

C-27z-15-3z=18z+185-2z
27z-3z-18z+2z=185+15
29z-21z=200
8z=200
z=200/8
z=25
D- 7(m-14)+20=5(m+3)-15
7m-98+20=5m+15-15
7m-5m=15-15+98-20
2m=-78
m=-78/2
m=-39

E-11(X+2)-410=2(2X-4)+89
11x+22-410=4x-8+89
11x-4x=-8+89-22+410
7x=469
x=67

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Answer 2

A)
3.(m + 4) + 8 = 2 + m
3m + 12 + 8 = 2 + m
3m + 20 = 2 + m
3m - m = 2 - 20
2m = - 18
m = - 18/2
m = - 9

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B)
6x + 14 + 3 = 2x + 158 - x
6x + 17 = x + 158
6x - x = 158 - 17
5x = 141
x = 141/5
***************************************
C)
27z - 15 - 3z = 18z + 185 - 2z
24z - 15 = 16z + 185
24z - 16z = 185 + 15
8z = 200
z = 200/8
z = 25

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D)
7(m - 14) + 20 = 5.(m + 3) - 15
7m - 98 + 20 = 5m + 15 - 15
7m - 78 = 5m
7m - 5m = 78
2m = 78
m = 78/2
m = 39

********************************************
E)
11(x + 2) - 410 = 2.(2x - 4) + 89
11x + 22 - 410 = 4x - 8 + 89
11x - 388 = 4x + 81
11x - 4x = 81 + 388
7x = 469
x = 469/7
x = 67