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r-3.5=0
We move all terms containing r to the left, all other terms to the right
r=3.5
| 10x-95=109-2x | | 24-24=3x | | c/10+6=16 | | 5+x=9x= | | −9/4 x=32 | | 3x=4+16 | | -13x-27=-12x+7 | | −94 x=32 | | 2(x-2)=-3(x+5)-6 | | k-5=-5+k | | 15n-15=7 | | b+63.48=72.46 | | c-7.6=(-4) | | 97=-3(6m-5)-8 | | 9x+2=4/4-24 | | 2x4x=16 | | 5(y-20-7y=-32 | | x=-23/4x-8=10 | | 6w-5+8w-2w-3=9w-24. | | 123+2y-16=180 | | 5+8x=7+8x | | z+4=(-14) | | y=21*11/7 | | -127-11x=185+x | | 5x+2+x+3=6x+5 | | 9x-17=4(3x+4) | | 11+29=x | | 60+35x=375 | | -a+3=4a+12 | | −6y=48 | | 3(x–12)=-21 | | y=10*11/7 |