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(3x+21)^2=0
| (x+11)-8=15 | | 5-2n=-n | | 10+5x+2=3x+12+2x | | a-2-15=-25 | | 3=2/(v-4) | | (52-2x)(16-2x)=160 | | -4-7r=-(7r+2) | | 12.6+4=9.6+8m | | x/4+x/6=19 | | 8(5–x)+3x=-100+5x | | 10x−5(x−3)=15 | | 4q+1=7+2q | | -15p–40=23–8p | | (x-18)-16=5 | | -2(6+3x)=-72 | | 2x+100=280 | | x+90+(x+13)=(x+23) | | 50+t=57 | | 2(2x+1)=4x+8 | | 3(-2x-3)-2x=-9-8x | | 3x+75=15 | | (b-4)/15=1 | | 20j-16j=20 | | -x/16=1 | | (x-13)+12=25 | | x=56-68 | | 2x+8=2(5x-4) | | 4w+4+1w=5w-5+9 | | 5(x/7)=11 | | -4(3-6k)+3=-81 | | x/19.7=0.609137055847 | | 3x+12=2x+1x |