Here is how you solve this problem... 5x*4-3x*5*2x-9= (Combine like-terms) 5x-3x*2x= 2x*2x=(2x)2 (Add the rest of the problem) (2x)2*4*5-9=(2x)2*20-9 (2x)2*11 (2x)2 *11= your answer
if you mean 5x -2y = 10 then y = 2.5x -5
x 2 - 5x - 36 = 0; factor. (x-9)(x+4) = 0; set each factor = 0. x - 9 = 0 and x + 4 = 0 So, x = 9 and x = -4.
First collect like terms in the second equation: 5x - 18 = 4y - 3y ie y = 5x - 18 Substitute this for the term in y in the first equation, getting 3x + 2(5x - 18) = 16 ie 3x + 10x - 36 = 16 ie 13x = 16 + 36 so x = 4 and y = 5 x 4 - 18 ie 2.
9(5x) = 45x simplified
5x-19 = 16 5x = 16+19 5x = 35 x = 7
5x + 9 = 4Subtract 9 from each side:5x = -5Divide each side by 5:x = -1
x=7
9
x = -8
-7+11x = 9-5x 11x+5x = 9+7 16x = 16 x = 1
If you mean: 7x-2 = 5x+16 then the value of x works out as 9
5x/6 = -9/6Multiply both sides of the equation by 6:5x = -9Divide both sides by 5:x = -9/5
5x - 3 + x - 9 = 5x Bring like terms together of the left side: 5x + x - 3 - 9 = 5x Combine like terms: 6x - 12 = 5x Add 12 to both sides: 6x = 5x + 12 Subtract 5x from both sides: x = 12
7X-1=9+5X. add 1 to both sides 7X=10+5X. Subtract 5X and get 2X=10 divide by 2 and x=5
If you mean: 7x-2 = 5x+16 then the value of x works out as 9
5x-9Substitute 4 in for x5(4)-9=Solve.9-9=0the answer is zero.The answer is not zero you added when you were supposed to multiply so the real answer is 11.