The law of term shifting of linear equation with one variable No URL

The law of term shifting of linear equation with one variable No URL


3x-2=x+4
[the constant term is moved to the right of the equation, and the term with unknowns is moved to the left of the equation]
3x-x=4+2
[merge similar items]
2x=6
[divide the two sides of the equation by the coefficient 2 of the unknown]
x=3



In the following formulas, the one variable linear equation is () a.4x + 3 B.1 / x = 1 c.2x + y = 5 d.3x = 2x-1


D
A is not an equation B is not a linear C is not a unary D correct answer



How to calculate x-3x + 2 = 0


Using cross phase multiplication, (x-1) (X-2) = 0, x = 1 or 2



How to calculate x ^ 2 + 3x + 2.25 > 0.3 + 2.25?


It is x ^ 2 + 3x-0.3 > 0
Add 0.3 + 2.55 to both sides of the inequality
That is to say, we get x ^ 2 + 3x + 2.25 > 0.3 + 2.25, which is to change the left side of the inequality into a complete square
(x+1.5)^2>2.55