Question

Item 15 Solve the equation for y. 20=5x+10y

Answer 1

Rewrite the equation as

5

x

+

10

y

=

20

5

x

+

10

y

=

20

.

5

x

+

10

y

=

20

5

x

+

10

y

=

20

Subtract

5

x

5

x

from both sides of the equation.

10

y

=

20

−

5

x

10

y

=

20

-

5

x

Divide each term by

10

10

and simplify.

y=2−x/ 2

Explanation: