SOLUTION: Please help me solve this equation: 4a - 2b[(4a + 3b)- 3c]- 5a when a= 3 b= -2 c= -1

Question 6094: Please help me solve this equation:
4a - 2b[(4a + 3b)- 3c]- 5a
when a= 3
b= -2
c= -1
Answer by guapa(62) (Show Source): You can put this solution on YOUR website!
Evaluate the parentheses first by substituting the variables by the given values. Start with the inner and continue.
4a-2b[(4a+3b)-3c]-5a
4a-2b{[4*3+3*(-2)]-3(-1)}-5a
4a-2b[(12-6)+3]-5a
4a-2b(9)-5a Next we do the multiplication
4a-2(-2)(9)-5a
4a+36-5a Now substitute the remaining variables
4*3+36-5*3
12+36-15 = 33
Hope this helps
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