87:(4х+5)=317×(3х-16)=859×(6х-13)=153

Question

87:(4х+5)=3
17×(3х-16)=85
9×(6х-13)=153

Answer 1

87/(4Х+5)=3

87=3*(4х+5)

87=12х+15

87-15=12х

12х=72

х=72:12

х=6