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
Wiki User
∙ 2011-11-18 22:52:56Anonymous
2
2x = -7 - 8y
It's just a mathematical polynomial: 7x + 3y.
If x equals 10 and y equals 10, then 9x plus 8y equals 170.
12
x2+7x x(x+7)
8y-7x
7x + 8y
56xy + 2y + 3x
(0,2)
That would depend on the plus or minus values of 7x and 10y of which none have been given.
(2, 1)
134
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
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
4x + y = 9 so that y = 9 - 4x 7x - 8y = 6 7x - 8*(9-4x) = 6 7x - 72 + 32x = 6 39x = 78 x = 2 Then y = 9 - 4x = 9-4*2 = 9-8 = 1
36..thats very simple..lol
7 pigs - 8 chickens + 9 pigs = 16 pigs - 8 chickens7 exes - 8 wyes + 9 exes = 16 exes - 8 wyes7x - 8y + 9x = 16x - 8y