brennanjb00
10.03.2021 •
Mathematics
Cual es el recorrido de la luz en un año en notación científica
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Ответ:
Good Morning
a-3b=16
a=b-2
Solve a=b -2 for a
Substitute b-2 for a in a-3b=16
a-3b=16
b-2-3b=16
Simplify both sides of the equation
-2b-2=16
Add 2 to both sides
-2b-2+2=16+2
-2b=18
Divide both sides by -2
-2b/-2 = 18/-2
b= -9
Substitute -9 for b in a=b -2
a=b -2
a=-9-2
Simplify both sides of the equation
a= -11
(-11,-9)
I hope that's help !
Happy Sunday :)