k) 5(2m+6)=4(5+2m)+3m
w) y+4(2y+1)=8+2y-1
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w) y+4(2y+1)=8+2y-1
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Respuesta:
k) 5(2m+6)=4(5+2m)+3m
10m+30=20+8m+3m
10m-8m-3m=20-30
-m=-10
m=10
w) y+4(2y+1)=8+2y-1
y+8y+4=8+2y-1
y+8y-2y=8-1-4
7y=3
y=3/7