22 tháng 10 2022 lúc 17:35
c)
\(6x-5=19\)
\(6x=19+5\)
\(6x=24\)
\(x=24:6\)
\(x=4\)
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d)
\(4\left(x-12\right)+9=17\)
\(4\left(x-12\right)=17-9\)
\(4\left(x-12\right)=8\)
\(x-12=8:4\)
\(x-12=2\)
\(x=2+12\)
\(x=14\)
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g)
\(\left(10+2x\right).2^{2011}=4^{2013}\)
\(10+2x=4^{2013-2011}\)
\(10+2x=4^2\)
\(10+2x=16\)
\(2x=16-10\)
\(2x=6\)
\(x=6:2\)
\(x=3\)
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