Improved Answer:-If: 20x+27 = 143Then: x = 5.8
20X - 3 + 3X = 11X + 5 - 8 put those like terms together on the left 23X - 3 = 11X + 5 - 8 like terms together on the right 23X - 3 = 11X - 3 this equation admits of no solution, so is not true X would = 0
To solve for 2 unknown variables you need at least 2 independent equations. You have only 1.
2x + 20x = 111,45222x = 111,452x = 5,066
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180=11x+9x. 180 = 20x. 18=2x. 9=x.
Improved Answer:-If: 20x+27 = 143Then: x = 5.8
20X - 3 + 3X = 11X + 5 - 8 put those like terms together on the left 23X - 3 = 11X + 5 - 8 like terms together on the right 23X - 3 = 11X - 3 this equation admits of no solution, so is not true X would = 0
If: 20x+5y = 15 Then: y = -4x+3
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20x
7x=20+20x collect terms containg x on one side and then factorize -13x=20 0r, x=-20/13
To solve for 2 unknown variables you need at least 2 independent equations. You have only 1.
2x + 20x = 111,45222x = 111,452x = 5,066
If: y = x2+20x+100 and x2-20x+100 Then: x2+20x+100 = x2-20x+100 So: 40x = 0 => x = 0 When x = 0 then y = 100 Therefore point of intersection: (0, 100)
20x + 80y = 0Subtract 20x from each side of the equation:80y = -20xDivide each side by 80:y = -1/4 xm = -1/4b = 0
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