Question

10Х + 1.5 * (2.3 - 1.7)=13.45

Answer 1

10х+1,5(2.3-1.7)=13.45
10х+3.45-2.5=13.45
10х=13.45-3.45+2.5
10х=12.5
х=12.5:10
х=1.25