Q: What is x in the equation 8x-2 equals -9 plus 7x?

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x3 + 7x = 8x2x3 + 7x - 8x2 = 0 [subtract 8x2 from both sides]x(x2 + 7 - 8x) = 0 [factor out x]x(x-1)(x-7) = 0 [factor]Since the product of the three factors x, x-1, and x-7 equals zero, any of the three expressions could equal zero:x = 0x - 1 = 0, x = 1x - 7 = 0, x = 7Therefore, there are three solutions to the equation x3 + 7x = 8x2:x = 0x = 1x = 7Or, in set notation: x = {0,1,7}

X=4.2666666666667

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

7x = -3y + 12

It is an equation and the value of x is 8

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-2x + 8 = 7x - 10 is technically an equation, in and of itself.

x3 + 7x = 8x2x3 + 7x - 8x2 = 0 [subtract 8x2 from both sides]x(x2 + 7 - 8x) = 0 [factor out x]x(x-1)(x-7) = 0 [factor]Since the product of the three factors x, x-1, and x-7 equals zero, any of the three expressions could equal zero:x = 0x - 1 = 0, x = 1x - 7 = 0, x = 7Therefore, there are three solutions to the equation x3 + 7x = 8x2:x = 0x = 1x = 7Or, in set notation: x = {0,1,7}

X=4.2666666666667

7x + y = 8 Subtract 7x from each side of the equation: y = -7x + 8

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

7x = -3y + 12

It is an equation and the value of x is 8

Why not? The statement is trivially true, meaning it holds for all values of x.

7x + 9 = 51 7x = 42 x = 42/7 = 6

Im guessing that the equation is 7x - 2y +3z= 19 so the answer is 7x + 3z= 19

It is an equation and the value of x is 2

It is an equation and the value of x is 12