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If you mean: 2x+y = -6 and 5x-3 = 7 then the solutions are x = -1 and y = -4

Q: How many solutions does this equation have 2x y-6 5x-3y7?

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2x2 - 6x - 25 = 0. Solutions are 5.34 and -2.34

Only one. 2x - 12x = 220 -10x = 220 x= 220/-10 x = -22

For example:y = x, and2y = 2x

3

the maximum number of solutions to an euation is equal to the highest power expressed in the equation. 2x^2=whatever will have 2 answers

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The quadratic equation will have two solutions.

2x2 - 6x - 25 = 0. Solutions are 5.34 and -2.34

2(2x-1)+2x=6(x-1)

There are infinitely many solutions. These are coordinates of all points on the line given by the equation 2 - y = 2x - 1 or 2x + y = 3.

Only one. 2x - 12x = 220 -10x = 220 x= 220/-10 x = -22

For example:y = x, and2y = 2x

3

the maximum number of solutions to an euation is equal to the highest power expressed in the equation. 2x^2=whatever will have 2 answers

There is one solution. To find it, divide both sides of the equation by 2. This leaves you with x=5, where 5 is your solution.

no

There's an equals missing...

None because without an equality sign it is not an equation but the given expression of 4x-22(2x-1) can be simplified to: 22-40x