Question

Решите уравнения:
1)$\frac{4x+23}{5,4} = \frac{8,5}{1,7}$
2)$\frac{5}{6}= \frac{3x+1,5}{9}$
3)$\frac{5}{12} = \frac{3}{1,3x+2}$

Answer 1

4х+23=5,4*8,5/1,7
4х+23=27
4х=4
Х=1


3х+1,5=45/6
3х+1,5=7,5
3х=6
Х=2


1,3х+2=36/5
1,3х+2=7,2
1,3х=5,2
Х=4

Answer 2

1) (4х+23)*1.7=6.8х+39.1
    8.5*5.4=45.9
    6.8х+39.1=45.9
    6.8х=45.9-39.1
    6.8х=6.8
    х=6.8:6.8
    х=1
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