Respuesta :

Simplifying 16x + 40y = 0 Solving 16x + 40y = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-40y' to each side of the equation. 16x + 40y + -40y = 0 + -40y Combine like terms: 40y + -40y = 0 16x + 0 = 
interestinguy9
Sorry dont know 8 but 10 is 2(x+6)+x
12. is 4(4v) and 4(6P) because you multiply how much each cost (v) with how many are in each set (4v) and then you have to multiply to find how much it would cost if it was 4 sets 

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good job