10a-20=4a+80
Subtract 4a from both sides of the equation.
10a-20-4a=80
Subtract 4a from 10a.
6a-20=80
6a-20=80
Add 20 to both sides of the equation.
6a=80+20
Add 80 and 20.
6a=100
6a=100
Divide each term in 6a=100 by 6.
6a6=1006
Cancel the common factor of 6.
Cancel the common factor.
6a6=1006
Divide a by 1.
a=1006
a=1006
Cancel the common factor of 100 and 6.
Factor 2 out of 100.
a=2(50)6
Cancel the common factors.
Factor 2 out of 6.
a=2⋅502⋅3
Cancel the common factor.
a=2⋅502⋅3
Rewrite the expression.
a=503
a=503
a=503
a=503
The result can be shown in multiple forms.
Exact Form:
a=503
Decimal Form:
a=16.6‾
Mixed Number Form:
a=1623
Solve for a 10a-20=4a+80