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Exercise 12.1

r. (1) 5x – 3 = 3x - 5
.
(1) 5y - 2[y - 3(y – 5)] = 6​

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Answer:

(1) x = -1 (1) y = 4

Step-by-step explanation:

r. (1) 5x - 3x = -5 + 3

       2x = -2; x = -1

(1) 5y - 2[y - 3y +15] = 6

    5y - 2y+6y - 30 = 6

    9y = 36; y = 4

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