State the mathematical properties of all the steps in the equation below.

(2x + 3) − 7 = 8 + x Problem Statement.
(2x + 3) + (−7) = 8 + x _______
((2x + 3) + (−7)) + 7 = (8 + x) + 7_
(2x + 3) + (−7 + 7) = (8 + x) +7 _
(2x + 3) + 0 = (8 + x) + 7 _
2x + 3 = (8 + x) + 7 _
2x + 3 = 7 + (8 + x) _
2x + 3 = (7 + 8) + x _
2x + 3 = 15 + x _
(2x + 3) + (−3) = (15 + x) + (−3) _
2x + (3 + (−3)) = (15 + x) + (−3) _
2x + 0 = (15 + x) + (−3) _
2x = (15 + x) + (−3) _
2x = (−3) + (15 + x) _
2x = (−3 + 15) + x _
2x = 12 + x _
2x + (−x) = 12 + x + (−x) _
2x + (−x) = 12 + 1 · x + (−x) _
2x + (−x) = 12 + 1 · x + (−1) · x _
2x + (−x) = 12 + (1 + (−1))x _
2x + (−x) = 12 + 0 · x _
2x + (−x) = 12 + 0 _
2x + (−x) = 12 _
2x + (−1) · x = 12 _
(2 + (−1)) · x = 12 _
1 · x = 12 _______
x = 12 Solution

Question

contestada

Respuesta :

Jestermundosorian Jestermundosorian · Answer 1 · 2021-06-25T01:41:47+02:00

Answer:

173*3*j3

Step-by-step explanation:

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