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privet35
@privet35
July 2022
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7 задание плиз срочно с решением
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dashka20081
1)9(x-4)=405+5(2x+4)
9x-36=405+10x+20
9x-10x=405+20+36
-x=461
x=-461
2)40-5*(3x-7)+4(x+17)=0
40-15x+35+4x+68=0
-11x+143=0
-11x=-143
x=13
3)2(3x-1)=101-2(2x-51)
6x-2=101-4x+102
10x=102+101+2
10x=205
x=20,5
4)3*(x-1)-25=4(x-3)
3x-3-25=4x-12
3x-4x=-12+3+25
-x=16
x=-16
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Answers & Comments
9x-36=405+10x+20
9x-10x=405+20+36
-x=461
x=-461
2)40-5*(3x-7)+4(x+17)=0
40-15x+35+4x+68=0
-11x+143=0
-11x=-143
x=13
3)2(3x-1)=101-2(2x-51)
6x-2=101-4x+102
10x=102+101+2
10x=205
x=20,5
4)3*(x-1)-25=4(x-3)
3x-3-25=4x-12
3x-4x=-12+3+25
-x=16
x=-16