trixy31606
trixy31606 trixy31606
  • 13-11-2018
  • Mathematics
contestada

What is the value of x when -3x + 7x = -12?
A) -3
B) -6/5
C) 3
D)4/7

Respuesta :

Аноним Аноним
  • 13-11-2018

-3x + 7x = -12


You need to add like terms.


4x = -12


Then, you need to divide both side by 4.


x = -3


So the answer is:

A) x = -3

Answer Link
emilyalex
emilyalex emilyalex
  • 26-03-2020

Answer:

The answer is A.) -3

Step-by-step explanation:

x ( -3 + 7) = -12 use distributive property to factor out the x. So

x (4) = -12 add the like terms inside parenthesis

¼ * 4x = -12 *

1

4

multiply both side by the reciprocal of 4

x = -3 final answer

Answer Link

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