Question

2x+3=9 , 5x-12=3 , 3(2x+1)=-9 , 3x+1=x-3 , 2(2x-5)=3(x-1)-4

Answer 1

Respuesta:

2x + 3 = 9

2x = 9 - 3

2x = 6

x   = 6/2

x   = 3

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5x - 12 = 3

5x = 3 + 12

5x = 15

x   = 15/5

x   = 3

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3(2x + 1) = -9

6x + 6 = -9

6x = -9 - 6

6x = -15

x   = -15/6

x   = -2.5

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3x + 1 = x - 3

3x - x = -3 - 1

4x = -4

x   = -4/ 4

x   = -1

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2(2x - 5) = 3(x-1) -4

4x - 10 = 3x - 3 -4

4x - 3x = -7 + 10

x = 3

Explicación paso a paso:

espero te sirva :3