Question

решить уровне 2(x+11.3)=54.2 (68.37-y)/6.15=8.2 3(x-2.9)=6.9 (x+5.7)/5.1=2

Answer 1

2х+22.6=54.2
2х=21.6

68,37-у=50,43
-у=50,43-68,37
-у=-17,94
y=17.94

3x-8.7=6.9
3x=15.6
x=5.2

x+5.7=2*5.1
x+5.7=10.2
x=4.5

Answer 2

первое не правильно там 2х+22.6=54.2

Answer 3

2х=31.6

Answer 4

х=15.8