Question

Решите уравнение 0,4(x-9)=0,3(2+х)+0,7

Answer 1

0,4(x-9)=0,3(2+х)+0,7
0.4х-3.6=0.6+0.3х+0.7
0.4х-0.3х=1+3.6
0.1х=1.36
Х=1.36/0.1
Х=13.6

Answer 2

0.4х-0.3х=1,3+3.6
0.1х=4.9
Х=4.9/0.1
Х=49