Mathematics, 22.06.2021 07:20 mpete1234567890
State the mathematical properties of all the steps in the equation below.
(2x + 3) โ 7 = 8 + x Problem Statement.
(2x + 3) + (โ7) = 8 + x
((2x + 3) + (โ7)) + 7 = (8 + x) + 7
(2x + 3) + (โ7 + 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) + (โ3) = (15 + x) + (โ3)
2x + (3 + (โ3)) = (15 + x) + (โ3)
2x + 0 = (15 + x) + (โ3)
2x = (15 + x) + (โ3)
2x = (โ3) + (15 + x)
2x = (โ3 + 15) + x
2x = 12 + x
2x + (โx) = 12 + x + (โx)
2x + (โx) = 12 + 1 ยท x + (โx)
2x + (โx) = 12 + 1 ยท x + (โ1) ยท x
2x + (โx) = 12 + (1 + (โ1))x
2x + (โx) = 12 + 0 ยท x
2x + (โx) = 12 + 0
2x + (โx) = 12
2x + (โ1) ยท x = 12
(2 + (โ1)) ยท x = 12
1 ยท x = 12
x = 12 Solution
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State the mathematical properties of all the steps in the equation below.
(2x + 3) โ 7 = 8 + x Prob...
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