Question

2) Resolva as equações a seguir:
a) 18x - 43 = 65
b) 23x - 16 = 14 - 17x
C) 3X + 6 + 5 = x + 12
D) 2x = -7
E) 3x + 2 = 2x - 11
F) 2x = 16
g) 2x + 14 = 5x - 1
H)4t + 9 = 3t + 5
1) -10 + 4 - 2x = -4x - 7
j) 10x - 8 - 2 = 7x - 4​

Answer 1

Resposta:

a

Explicação passo-a-passo:

18x-43=65

65+43=18x

108/18=x

A)x=6

b)

23x -16 =14 - 17x

23x+17x= 14+16

40x=30

x=30/40

x=0.75

c)

3x +6+5=x+12

3x-x=12-6-5

2x=1

x=1/2

d)

2x= -7

x=7/2

e)

3x+2=2x-11

x=-13

f)2x=16

X=8

g)

2x+14 = 5x-1

2x-5x =-15

-3x=-15

X=5

h)4t+9=3t+5

t=-4

I)-10+4-2x=-4x-7

-6-2x=-4x-7

2x=-1

x= -1/2

j)

10x - 8 - 2 = 7x - 4

3x=6

x=2