Oh, dude, 7y in math is just like saying "7 times y." It's like when you have 7 slices of Pizza and y represents how hungry you are. So, if y is 2, you'd need 14 slices to satisfy your hunger. Math can be deliciously confusing, right?
7y + 2y = 9y 7y * 2y = 14y^2
Slope is found by this form. Y = mX + c ( m = slope ) - 5X - 7Y - 6 = 0 ( I assume this is what you mean ) - 7Y - 6 = 5X - 7Y = 5X + 6 Y = - 5/7X - 6/7 The slope would be in this instance, - 5/7 ----------
Honey, that's not a linear equation, so there's no slope-intercept form to be found here. You've got a monomial mess on your hands with 9xy. If you want to simplify it, just leave it as 9xy. No need to force it into a form it doesn't belong in.
A number is in exponential form when it is written with a base and an exponent.
If you mean: 13x+2y-10x-7y then it is an algebraic expression that can be simplified to 3x-5y
You mean like these?: 9 * 2 - (-2 + 9) + 15 / (4.5 + 3) (6x + 7y) * 2 (y - 6x)=(6x*2y)-(6x*12x)+(2y*7y)-(12x*7y)=12xy-72x^2+14y^2-84xy=14y^2-72x^2-72xy
7y + 2y = 9y 7y * 2y = 14y^2
-4
Honey, that's not a linear equation, so there's no slope-intercept form to be found here. You've got a monomial mess on your hands with 9xy. If you want to simplify it, just leave it as 9xy. No need to force it into a form it doesn't belong in.
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If you mean: (2x-7y)(x+y) then it is 2x squared -5xy -7y squared
Slope is found by this form. Y = mX + c ( m = slope ) - 5X - 7Y - 6 = 0 ( I assume this is what you mean ) - 7Y - 6 = 5X - 7Y = 5X + 6 Y = - 5/7X - 6/7 The slope would be in this instance, - 5/7 ----------
If you mean: 32-10x+7y = 0 then as a straight line equation it is 7y = 10x-32
the mean (in math) is the average of all the numbers in the problem
Mathematics is not mean. It is the purest form of knowledge!
If you mean: x+7y = 39 and 3x-2y = 2 Then by substitution: x = 4 and y = 5
If you mean: 3y^2-7y+3-5y+3-4y^2 then it is simplified to -y^2-12y+6