a)2x+3x+5=20
b)10y-0.2(7-y)=19
c)1.2x+4.8x=18
d)6x+14=16x
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2x+3x+5=20
5x+5 =20
5x=20-5
5x=15
x=3
b) 10y-1.4+0.2y=19
10.2y-1.4=19
10.2y=19+1.4
10.2y =20.4
y=20.4/10.2
y=0.5
c)1.2+4.8x=18
4.8x=18-1.2
4.8x=16.8
x=3.5
d)6x+14=16x
14=16x-6x
14=10x
x=1.4
5x+5 =20
5x=20-5
5x=15
x=3
b) 10y-1.4+0.2y=19
10.2y-1.4=19
10.2y=19+1.4
10.2y =20.4
y=20.4/10.2
y=0.5
c)1.2+4.8x=18
4.8x=18-1.2
4.8x=16.8
x=3.5
d)6x+14=16x
14=16x-6x
14=10x
x=1.4
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