4x+23=8.5 5.4 1.7

Question

4x+23=8.5

5.4 1.7

Answer 1

4х+23=5*5.4

4х=27-23

4х=4

х=1

Answer 2

решим по свойству пропорции

(4х+23)*1.7=8.5*5.4

6.8х + 39.1 = 45,9

6.8х = 45,9 - 39.1

6.8х  = 6.8

х= 1