# algebra

posted by
**steve dowling**
.

please help with the following problem using the substitution method

y=2x

x+y=12

thanks

x + 2x = 12

3x = 12

x = 4

y = 2x = 8

posted by
**steve dowling**
.

please help with the following problem using the substitution method

y=2x

x+y=12

thanks

x + 2x = 12

3x = 12

x = 4

y = 2x = 8