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Q: How do you solve 2a-7 equals -9?

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use algebra and then factor... x= -9 and 9

.56x=9-.44x x=9

z4-9=0 z4=9

Since the second equation is already solved for "y", you can replace "y" by "9" in the other equation. Then solve the new equation for "x".

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The answer is 567. 2x189=378. 3x189=567.

A + 9 = 21 A = 21 - 9 A = 12

2r-1=9 2r =10 r =5

Solve this problem -x squared -40x- 80 =0

-9-2x=9-8x6x=18 x=3

2x+6x=-9 => 8x=-9=> x=-8/9

D - 9 = 9 d = 9 + 9 d = 18

w = 70.25

4a - 9 = 27 4a = 36 a = 9

3x-y=9 y=3x-9

h = 16 16-9 = 7

Do you mean: r = (4q-5p)/9? If so then: p = (9r-4q)/-5