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3a+4a+2a=0
We add all the numbers together, and all the variables
9a=0
a=0/9
a=0
| b-68=36 | | 64+90+x+8=180 | | 66+50+x=180 | | 54+x+115=180 | | 61+x+84=180 | | x/12-6=-1 | | x2-18+93=- | | 6x+6=13+4x | | 32.83=15x+1.93 | | 4m+6+5m+3+90=180 | | (x^2-x-2)/(x-6)=0 | | 5m-7=3(2m+1) | | 52+x+81=180 | | 9e-8-8e-2=180 | | (2x-9)/(x-4)=0 | | 2x-9/x-4=0 | | 1.2=1.08^t | | 11y-6y-7=61.80 | | r+5+2r+4=180 | | 10y-5y-9=59.25 | | 1.342z=16.104 | | 1/6y-6=-19 | | Y=8(1/2)^x | | -12=4(2q+7)-3q | | z-8+4=-8 | | 6v-34=4(v-5) | | -11-6b+3=16+2b | | 2k^2-7+6=0 | | 3x^2-2+149=0 | | -14.63=-4.52+-3q | | 5(8-2w)=4-4w | | 8x-6=10x-6 |