7/5 = 210/x
7x = 1,050
x = 150
The algebraic formula to determine Matt's age would be 2 x N or 2N if Helen is N years old and Matt is 2N years older than Helen.
8 + 3(8) = 32
9 + 3(9) = 36
10 + 3(10) = 40
11 + 3(11) = 44
A constant is a number that stays the same. Three is a constant number that will not change in this equation.
A coefficient is a digit multiplied by a variable. 4 is the coefficient of the independent variable w in this equation.
x = 1st number
x + 1 = 2nd number
x + 2 = 3rd number
3x = x + 1 + x + 2 + 8
3x = 2x + 11
x = 11
A variable that depends on one or more other variables is referred to as a dependent variable. V is a function of m's value in this equation.
A variable that may have its value determined independently of the values of other variables is known as an independent variable. M is an independent variable in this equation.
If one son received a sum of X, the other son would have received an amount of $500 - X.
Parentheses, brackets, and braces are grouping symbols used in mathematics that can include integers, variables, and operations. As indicated by the grouping sign, perform the operation first. In contrast, an arrow is a notation that implies that both sides of a notation are equal.
-3ab + 4ac - 2ad = -(3ab - 4ac + 2ad)
-3ab + 4ac - 2ad = -3ab + 4ac - 2ad
If x = 5,
6x + 2x - x =
6(5) + 2(5) - 5 =
30 + 10 - 5 = 35
If 10 is divided into two parts, with y being one of the parts, the second component will be 10 - y.
The formula B + C would be used to calculate Peter's total number of bats if he starts with B bats and then purchases C more bats.
When Peter gives away D bats, the total of B + C would be subtracted from D bats to show how many he still possesses.
The equation is, therefore, B + C - D.
If a minus symbol is present outside of parentheses, the terms inside the parentheses will alter when the parenthesis are removed. For instance,
- (2x - 4y) (2x - 4y)
-2x + 4y
