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Q: What is 10x multiplied by -2y?

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10x - 5y + 2x - 3y = 12x - 8y

13x10yx7+2y 13

10x-2y=30

If you mean: 13x+2y-10x-7y then it is an algebraic expression that can be simplified to 3x-5y

10x + 41y - 142x + 2y = 10x - 142x + 41y + 2y = (10 -142)x + (41 + 2)y = -132x + 43y

To solve this, you would normally set up a systems of equations 10x + 2y = 10 10x + 2y = 11 However, it clearly makes no sense and has no answer. To prove this mathematically, subtact the two equations. 10x - 10x = 0 2y - 2y = 0 10-11 = -1 Therefore, it is basically saying that 0 + 0 = -1 Obviously, that is incorrect, so this question has no solutions.

10x + 2y + 8z - 5x + 4z - 4y = 10x - 5x + 2y - 4y + 8z + 4z = (10 - 5)x + (2 - 4)y + (8 + 4)z = 5x - 2y + 12z

2y

Bbbbf

2x² multiplied by 5 = 10x²

Ddookie

Add -x -6y. Just like with numbers, subtract the first from the second to find what to add to the first to get the second; keeping like terms together: (10x - 4y) - (11x + 2y) = (10x - 11x) + (-4y - 2y) = (10 - 11)x + (-4 - 2)y = -x - 6y

3x - 2y + 7x + 4y = 3x + 7x - 2y +4y = (3+7)x + (-2+4)y = 10x + 2y

10x - 1x = 9

8y-7x

multiply by 2y/x

√(10x) * √(8x) = √(80x²)√(80x²) = √(16x²) * √(5) = 4x*√(5)■

The factor of -10x-30xy is -10x. This is because 10 is the highest number that both -10x and -30xy can be divided by, the "-" sign was added because it is another common element between -10x and -30xy, the same applies to the x. When factored, -10x-30xy looks like -10x(1+30y) [the x is not a multiplication symbol]. When expanding it both the 1 and the 30y are multiplied by -10x.

5x * 2x = 10x^2

12x-8y

-10x + 2y = 14 Initial problem (-10x + 2y) + 10x = (14) + 10x add 10x to each side of the equation 2y = 10x + 14 value after the addition (2y)/2 = (10x +14)/2 divide by 2 y = 5x + 7 resultant eqution y = mx + b is the standard form m = 5 and b = 7 via substitution slope of standard formula = m, therefore slope = 5 by definition b is the Y-intercept, therefore Y-intercept is 7 --------------------------------------------------------------------------- Note the Y-intercept is where the line crosses the Y Cartesian coordinate axis at x = 0. therefore it can be calculated as Given y = 5x + 7, and x = 0 then y = 5(0) + 7 y = 0 + 7 y = 7 or in logical terms dialectical analysis Thesis is y = 5x + 7 Antithesis is x = 0 Synthesis is y = 7

There are infinitely many in each of the two curves/lines.

cant explain it but i can give you an example: equation 1: 14x+2y=20 equation 2: 5x-y=8 First step is to get on of the varibles to cancel out so leave the first eqation alone put change the second in this problem so: 5x-y=8 becomes 2(5x-y=8) which equals 10x-2y=16 the next step is to subtract them like this: 14x+2y=20 10x-2y=16 the +2y and the -2y cancel out so the answer then would be 4x=4 which means 1=x then you plug the answer 1 in for x into on of the equations to find y so: 5(1)-y=8 = 5-y=8 =-y=3 =y=-3 so the system answer is (1,-3)

2y - x = 3 y = -5x + 7 Rewrite the second y + 5x = 7 Mutiply it by 2 2y + 10x = 14 Now subtract the first equation from this: 2y + 10x = 14 2y - x = 3 11x = 11 Divide both sides by 11: x = 1 Substitute for x in the first equation: 2y - 1 = 3 Add 1 to both sides: 2y = 4 Divide both sides by 2: y = 2 Answer: (x, y) = (1, 2)

Double first equation: 10x + 2y = 10Subtract second equation: 7x = 7x = 1, y = 0