Shazrts2371
30.11.2020 •
Mathematics
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Ответ:
6(3x-5)-7x=25
multiply the bracket by 6
(6)(3x)=18x
(6)(-5)=-30
18x-30-7x=25
combine the like terms together
18x-7x-30=25
11x-30=25
move -30 to the other side
sign changes from -30 to +30
11x-30+30=25+30
11x=25+30
11x=55
divide by 11 for both sides to get x by itself
11x/11=55/11
x=5
x=5
Ответ: