Question

1 resolva as equações:
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Answer 1

Resposta:

a) x = +3

b) = 3x +7

c) x = -3

d) x = -0.2
e) x = 2

f) x = 1.5

g) x = 5

h) x = -1

i) x = 2.6

j) x = 0

k) x = 5

l) x = 1

m) x = 2

n) x = 88

o) x = 5

p) x = 2

q) x = -1

r) x = 2

s) x = 88

t) x = 5

Explicação passo a passo:

a) x+5 = 8

x = 8 -5

x = +3

b) 2x +5 -5x +2

2x -5x +5 +2

3x +7

c) 5 +6x = 5x +2

6x -5x = 2 -5

x = -3

d) -3x +10 = 2x + 8 +1

-3x -2x = 8 +1 -10

5x = -1

x = -0.2

e) x + 2x -1 -3 = x

x +2x -x = 1 +3

2x = 4

x = 2

f) 7x -4 -x = -7x +6x + 15

7x -x +7x -6x = 15 -4

7x = 11

x = 1.5

g) -x -5 +4x = -7x +6x +15

-x +4x +7x -6x = 15 +5

4x = 20

x = 5

h) 3x -2x = 3x +2

3x -2x -3x = 2

-2x = 2

-x = 1

x = -1

i) 2 -4x = 32 -18x +12

-4x +18x = 32 +12 -2

16x = 42

x = 2.6

j) 2x -1 = -3 +x +4

2x -x = -3 +4 -1

x = 0

k) 3x -2 -2x -3 = 0

3x -2x = 0 +2 +3

x = 5

l) 3x +2 -2x -3 = 0

3x -2x = 0 -2 +3

x = 1

m) 10 -9x +2x = 2 -3x

-9x +2x +3x = 2 -10

-4x = -8

-x = -2

x = 2

n) 4x -4 -5x = -6 +90

4x -5x = -6 +90 +4

x = 88

o) 2 -3x = -2x +12 -3x

-3x +2x +3x = 12 -2

2x = 10

x = 5

p) 2x -1 = -3 +x +4

2x -x = -3 +4 +1

x= 2

q) 3x -2 -2x +3 = 0

3x -2x = 0 +2 -3

x = -1

r) 10 -9x +2x = 2 - 3x

-9x +2x +3x = 2 -10

-4x = -8

-x = -2

x = 2

s) 4x -4 -5x = -6 +90

4x -5x = -6 +90 +4

x = 88

t) 2 - 3x = -2x + 12 -3x

-3x +2x +3x = 12 -2

2x = 10

x = 5

espero ter ajudado e bons estudos o(￣▽￣)ｄ

coloque como melhor resposta por favor (★‿★)