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2(x-5)+4(x+1)=
2x-10+4x+4=
(2x-10+4x+4)*10=3
20x-100+40x+40=3
60x-60=3
60x=3+60
x=63:60
x=
x=
x=
b)
6(1+2x)-2(x-3)=
(6+12x-2x+6)*4=1
(12+10x)*4=1
48+40x=1
40x=1-48
x=