помогите решить))
1)11,3x-5.2=1.3x+7.4
2)4(5-3x) + 3(2+2x)=24
3)7(6-3x) + 6(3+2x)=57
1)11,3x-5.2=1.3x+7.4
2)4(5-3x) + 3(2+2x)=24
3)7(6-3x) + 6(3+2x)=57
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Answers & Comments
11,3х-1,3х=7,4+5,2
10х=12,6
х=12,6÷10
х=1,26
2)4(5-3х)+3(2+2х)=24
20-12х+6+6х=24
-12х+6х=24-20-6
-6х=-2
х=-2÷(-6)
х=2/6
х=1/3
3)7(6-3х)+6(3+2х)=57
42-21х+18+12х=57
-21х+12х=57-42-18
-9х=-3
х=-3÷(-9)
х=3/9
х=1/3