Question

(2,61-4x):0.03+4,6=90

Answer 1

(2.61-4х):0.03+4.6=90

(2.61-4х):0.03=90-4.6

(2.61-4х):0.03=85.4

2.61-4х=85.4*0.03

2.61-4х=2.562

-4х=2.562-2.61

-4х=-0.048

х=-0.048:(-4)

х=0.012.