a: \(\Leftrightarrow20\left(5x-5+2\right)-15\left(9x-1\right)=24\left(3x+1\right)-60\)
\(\Leftrightarrow100x-60-135x+15=72x+24-60\)
=>72x-36=-35x-45
=>107x=-9
=>x=-9/107
b: \(\Leftrightarrow15\left(x-2\right)+2\left(5x-9.5\right)=16\left(x+2\right)+100\)
=>15x-30+10x-19=16x+32+100
=>25x-49=16x+132
=>9x=181
=>x=181/9
c: \(\Leftrightarrow3\left(9x+3+2\right)-18=4\left(5x+1\right)-3x-1\)
=>3(9x+5)-18=20x+4-3x-1=17x+3
=>27x+15-18=17x+3
=>10x=3-15+18=6
=>x=3/5
d: \(\Leftrightarrow8x+4+9\left(4x+1\right)=2\left(3x+2x+2\right)+11x+5\)
=>8x+4+36x+9=10x+4+11x+5
=>44x+13=21x+9
=>23x=-4
=>x=-4/23
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