SOLUTION: How do I smiplify the expression (x+4y-4z)-(x-3y+4)

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Question 669280: How do I smiplify the expression (x+4y-4z)-(x-3y+4)
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

%28x%2B4y-4z%29-%28x-3y%2B4%29+.....minus sign in front of the parenthesis like you have here(-%28x-3y%2B4%29+) means that the whole parenthesis is negative; so every term inside will change its sign
x%2B4y-4z-x%2B3y-4+
x%2B4y-4z-x%2B3y-4+
cross%28x%29%2B%284y%2B3y%29-4z-cross%28x%29-4+
7y-4z-4+