Question

(6 * y + 14) : 2 + 15 = 40

Answer 1

(6у+14):2=40-15
(6у+14):2=25
6у+14=25*2
6у+14=50
6у=50-14
6у=36
у=36:6
у=6

Answer 2

(6у+14):2=40-15
6у+14=25*2
6у+14=50
6у=50-14
6у=36
у=36/6
у=6
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(6*6+14)/2+15=40
36+14)/2+15=40
40=40