None. 7x - 1 is not equal to 7x - 7.
Let the number be x: 7x-6 = -20 7x = -20+6 7x = -14 x = -2
42069
It equals 53X- a number is squared when it is multiplied by itself, so 7X by 7X = 49X. 2X by 2X =4X, so 49X + 4X is 53X.
1
Without an equality sign the given terms can't be considered to be a straight line equation.
7x = 2 = 51 is not a valid equality. 2 cannot be equal to 51.
If x=y then x+z=y+z or If x=y and a=b then x+a=y+b The formal name for the property of equality that allows one to add the same quantity to both sides of an equation. This, along with the multiplicative property of equality, is one of the most commonly used properties for solving equations.
7x-2
7x2
Without any equality signs the expressions given can't be considered to be equations
8x=7x-7 x=-7
The expression ( 7x ) multiplied by ( x ) can be simplified by applying the properties of multiplication. This results in ( 7x^2 ), which means 7 times the square of ( x ).
Without an equality sign the expression given can't be considered to be a straight line equation. But if you mean: 5y = -7x then the slope is -7/5 or as -1.4
63
12x - 4 = 7x - 21 12x -7x = -21 + 4 5x = -17 x = -3.4
Without an equality sign and not knowing the plus or minus values of 7x and 4 the given expression can't be considered to be an equation
7x+8-x-7 6x+1