Respuesta :
Answer:
X=4
Step-by-step explanation:
Simplifying
x + x + 2 + x + 4 + x + 6 = 28
Reorder the terms:
2 + 4 + 6 + x + x + x + x = 28
Combine like terms: 2 + 4 = 6
6 + 6 + x + x + x + x = 28
Combine like terms: 6 + 6 = 12
12 + x + x + x + x = 28
Combine like terms: x + x = 2x
12 + 2x + x + x = 28
Combine like terms: 2x + x = 3x
12 + 3x + x = 28
Combine like terms: 3x + x = 4x
12 + 4x = 28
Solving
12 + 4x = 28
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-12' to each side of the equation.
12 + -12 + 4x = 28 + -12
Combine like terms: 12 + -12 = 0
0 + 4x = 28 + -12
4x = 28 + -12
Combine like terms: 28 + -12 = 16
4x = 16
Divide each side by '4'.
x = 4
Simplifying
x = 4
Answer:
x = -10
Step-by-step explanation:
x+x+2+x+4+x+6=-28
Combine all like terms
4x + 2 + 4 + 6 = -28
4x + 12 = -28
Simplify by subtracting 12 on both sides.
4x = -40
Divide by 4.
x = -10
Check
x+x+2+x+4+x+6=-28
(-10) + (-10) + 2 + (-10) + 4 + (-10) + 6 = -28
-28 = -28
