Bài 1:
\(a,\Rightarrow x-18=75:25=3\Rightarrow x=21\\ b,\Rightarrow27x+6=20\cdot3=60\Rightarrow x=2\\ c,\Rightarrow15-6x=3\Rightarrow x=\dfrac{12}{6}=2\\ d,\Rightarrow2x-6=4^2=16\Rightarrow x=\dfrac{22}{2}=11\\ e,\Rightarrow x+10=\dfrac{740}{74}=10\Rightarrow x=0\)
Bài 4:
\(a,\Rightarrow x+35=103\Rightarrow x=68\\ b,\Rightarrow12x=3^5+33=276\Rightarrow x=23\\ c,\Rightarrow x=\dfrac{24}{6}=4\\ d,\Rightarrow x-12=\dfrac{8}{4}=2\Rightarrow x=14\)
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