Question

Solve for y: a) 5 y = 5 6 b) 7 y−3 = 1

Answer 1

5y - 2 (y - 3 (y - 5) = 6

5y - 2 (y - 3y + 15) = 6

5y - 2 (-2y + 15) = 6

5y + 4y - 30= 6

9y - 30 = 6

9y = 6 + 30

9y = 36

y = 36/9

y = 4

Answer 2

a) 5y = 56

y = 56/5

y = 11.2

b) 7y - 3 = 1

7y = 1+3

7y = 4

y = 4/7

y = 0.57..

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