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Q: What is the answer to -9x - 8y 7x 10y?

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The perimeter of a triangle is the sum of the lengths of the three sides.If the three expressions in the question are in fact the lengths of thethree sides, then the perimeter is their sum.(7x + 9w) + (2x + 8y) + (2y + 5w) = 9x + 10y + 14w

If you mean (9x-8y)(9x+8y) then it is 81x^2 minus 64y^2

7 pigs - 8 chickens + 9 pigs = 16 pigs - 8 chickens7 exes - 8 wyes + 9 exes = 16 exes - 8 wyes7x - 8y + 9x = 16x - 8y

2y+8y = 10y

7x - 9x = -2x

- 7x + (9x - 3) = - 7x + 9x - 3 = 2x - 3

10y + 8y = 18y = 15 y = 15/18 y = 5/6 = 0.833333.....

9x plus 8y

2x=7x=9x

LCM(10y2 , 8y) = 40y2

it would simply still be 7x+8y You must have "like terms" to add variables meaning they both must be x or y . so your answer would still be 7x+8y

17

9x-4 = 7x+8 9x-7x = 8+4 2x = 12 x = 6

9x+6 = 7x+18 9x-7x = 18-6 2x = 12 x = 6

If you mean: 7x-53 = 9x Then the solution is: x = -26.5

9x-8=7x-3 9x-7x=-3+8 2x=5 x=5/2 x=2.5

The LCM is 40y3

Do a bit of rearrangement: 1: 10x + 2 = 8y; 2: 8y = 59 - 9x so 10x + 2 = 59 - 9x so 19x - 57 making x = 3 and y is therefore 4.

7x-4=9x+10-14=2xx=-7

6x - 3y

2x + 5x - 1 = 9x 7x - 1 = 9x -1 = 9x - 7x -1 = 2x -1/2=x

(5x -3x) (2y +8y) 2x + 10y

Gradient = [2 - (-5)]/[(-3) - 5] = -7/8So equation is y - 2 = -7/8*[x - (-3)]or 8y - 16 = -7x - 21that is 7x + 8y + 5 = 0Gradient = [2 - (-5)]/[(-3) - 5] = -7/8So equation is y - 2 = -7/8*[x - (-3)]or 8y - 16 = -7x - 21that is 7x + 8y + 5 = 0Gradient = [2 - (-5)]/[(-3) - 5] = -7/8So equation is y - 2 = -7/8*[x - (-3)]or 8y - 16 = -7x - 21that is 7x + 8y + 5 = 0Gradient = [2 - (-5)]/[(-3) - 5] = -7/8So equation is y - 2 = -7/8*[x - (-3)]or 8y - 16 = -7x - 21that is 7x + 8y + 5 = 0

8y-7x

7x = 4x - 93x = -9x = -3