Question

решить уравнение: 3(4х+13) -25 =74

Answer 1

3(4х+13) -25 =74

 3(4х+13) =99

 4х+13=33

4х=20

х=5 

 

Answer 2

3(4х+13) -25 =74

12х+39-25=74

12х=74-39+25

12х=60

х=60:12

Х=5