Question

Simplify the equation

Answer 1

- 2x + 22y + 24z + 15

Explanation:

Distribute all 3 parenthesis

= - 20x + 12y - 40 + 18x + 42z + 48 + 10y - 18z + 7 ← collect like terms

= - 2x + 22y + 24z + 15

Answer 2

-2x + 22y + 24z + 15

Explanation:

-4*(5x-3y+10) + 6*(3x+7z+8) +2/3 * (15y-27z+21/2)

Expand all the brackets and you would get:

-20x + 12y - 40 + 18x + 42z + 48 + 10y - 18z + 7

= (-20x + 18x) +(12y + 10y) + (42z - 18z) - 40 + 48 + 7

= -2x + 22y + 24z + 15

Hope this helped :3