Respuesta :

Answer:

x = -4

Step-by-step explanation:

7x + 3 = 4x - 9

7x - 4x + 3 = 4x - 4x - 9

3x + 3 = -9

3x + 3 - 3 = -9 - 3

3x = -12

x = -4

Answer:

-4

Step-by-step explanation:

Step 1: Subtract 4x from both sides.

7x+3−4x=4x−9−4x

3x+3=−9

Step 2: Subtract 3 from both sides.

3x+3−3=−9−3

3x=−12

Step 3: Divide both sides by 3.

3x /3 = −12 /3

x=−4

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