5x-2x = 3
5x+2x=7x2x + 5x = 7x
5x - 2x = 3x
5x -2x = 3
5x * 2x = 10x^2
5
5x-8= -2x+6(+8 = +8)5x=-2x+14(+2x = +2x)7x=14x=14
Let x represent the number. 2 times the number would be 2x, and 5 times the number would be 5x. The sum of the two would be 2X + 5x = 7x
2x2 + 5x + 3 Notice the first term, which can be rewritten as 2x times x. With this in mind, you can write the equation as...(2x + a)(x + b)...where -a and -b are the answers.You know that a times b is equal to 3.With a little trial and error, you will find:2x2 + 5x + 3 = (2x + 3)(x + 1)
x=1 2/3 How?: 2x-4+3 = 5x-6 2x-1 = 5x-6 2x-1+1 = 5x-6+1 2x = 5x-5 2x-5x = 5x-5x-5 -3x = -5 -3x/-3 = -5/-3 x = 5/3 x = 1 2/3
2x plus 5x simplified is 7x.
2x +1 = 5x-2 2x +3= 5x 3 = 3x x=1