contestada

- Match each equation with an equivalent equation. Some of the answer choices are
not used.
A. 3x + 6 = 4x + 7
1.9x = 4x + 7
B. 3(x + 6) = 4x +7
2. 3x + 18 = 4x + 7
C. 4x + 3x = 7-6
3. 3x = 4x + 7
4. 3x - 1 = 4x
5. 7x = 1

Respuesta :

Answer: A,4-B,2-C,5

Solution:

If you need to show the work just try to do it until you get the right answers because it helps you actually learn how to do it........=_=

A. X=-1

B. X=11

C. X=1/7

1. X=7/5

2. X=11

3. X=-7

4. X=-1

5. X=1/7

fichoh

The equivalent pairs of equations in the options given are :

  • 3x + 6 = 4x + 7 and 3x - 1 = 4x
  • 3(x + 6) = 4x + 7 and 3x + 18 = 4x + 7
  • 4x + 3x = 7 - 6 and 7x = 1

Evaluation each expression :

  • 3x + 6 = 4x + 7
  • 3x + 6 - 7 = 4x
  • 3x - 1 = 4x [A = 4]

  • 3(x + 6) = 4x + 7
  • Open the bracket
  • 3x + 18 = 4x + 7 [B = 2]

  • 4x + 3x = 7 - 6
  • 7x = 1 [C = 5]

Therefore, only the above pairs of equations are equivalent.

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