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stepan [7]
3 years ago
5

If 2a^2 +3^1a - 5a^2= 9, then a-a^2=

Mathematics
1 answer:
anygoal [31]3 years ago
5 0

Answer: 3.


Explanation:


1) Given expression: 2a² + 3a - 5a² = 9


2) Combine like terms: -3a² + 3a = 9


3) Division property of equalities (divide both sides by 3): - a² + a = 3


4) Rearrange: a - a² = 3


That is the answer requested.

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Add the length and width of rectangle A and set equal to the sum of the length and width of rectangle B.
Then solve for d.
Once you know d, substitute it in each length and width to find the actual lengths and widths.

0.7d + 1 + 1.5d - 2 = 2.5 + d + 4 - 1.3d

2.2d - 1 = -0.3d + 6.5

2.5d = 7.5

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