Question

решить уравнение(150:у+7)*40=480

Answer 1

(150:у+7)*40=480
(150:у+7)=12
150:у=5
у=150:5
у=30 

Answer 2

(150:у+7)*40=480
((150 + 7y) / y)*40 = 480
280y+6000/y = 480
280y +6000 = 480y
280y-480y= -6000
-200y=-6000
y=30