Question

Determine X
a)6x=2x+16
b)2x-5=x+1
c)2x+3=x+4
d)5x+7=4x+10
e)4x-10=2x+2
f)4x-7=8x-2
g)2x+1=4x-7
h)9x+9+3x=15​

Answer 1

Resposta:

Explicação passo-a-passo:

a)

6x = 2x + 16

6x - 2x = 16

4x = 16

x = 16 ÷ 4

x = 4

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b)

2x - 5 = x + 1

2x - x = 1 + 5

x = 6

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c)

2x + 3 = x + 4

2x + x = 4 - 3

x = 1

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d)

5x + 7 = 4x + 10

5x - 4x = 10 - 7

x = 3

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e)

4x - 10 = 2x + 2

4x - 2x = 2 + 10

2x = 12

x = 6

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f)

4x - 7 = 8x - 2

4x - 8x = -2 + 7

-4x = 5

x = ⁻⁵/₄

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g)

2x + 1 = 4x - 7

2x - 4x = -7 - 1

-2x = -8

x = 4

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h)

9x + 9 + 3x = 15

9x + 3x = 15 - 9

12x = 6

x = ⁶/₁₂

Simplifica

x =  ¹/₂​