Question

Simplifyng algebraic expressions

-2z-3w+7+8 use z=3 and w=9​

Answer 1

-9

Explanation:

Substitute 3 for z and 9 for w in the equation.

`- 2z - 3w + 7 + 8`

`- 2(3) - 3(9) + 15`

`- 6 - 18 + 15`

`- 24 + 15`

`- 9`