Which expression is equivalent to 4 (3n - 5)?

a: 7n - 20
b: 12n -5
c: 12n - 20
d: 7n - 9

Expression 4 (3n - 5) is equivalent to C: 12n - 20

Algebraic expressions in mathematics are a combination of coefficients, numbers, variables, constants and arithmetic operations such as addition, subtraction, multiplication, and division.

The main composition of algebraic expressions are:

algebraic forms separated by arithmetic operations

consists of one phrase (monomial) to many phrases (polynomial)

is a value that can be changed, can be in the form of letters, for example, x, y, a, b, etc.

is a fixed value, can be a number

Calculation operations include multiply, divide, add, substract, etc.

There are several properties in integer multiplication operations

Multiplication between integers will produce integers too

a x b = b x a

ax (bxc) = (axb) xc

ax1 = 1 x a = a

* addition

ax (b + c) = axb + axc

* substraction

ax (b-c) = axb - axc

We can use distributive  property  of substraction   to solve the problem

"Equivalent to" means having the same value.

From the answer choices , which produce the same expression is C. 12n-20

6 squared divided by 2 (3) +4

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an algebraic expression

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Keywords: PEMDAS, arithmetic operations, multiply, Parentheses, equivalent to

the line of

1.3

step-by-step explanation:

3x2=6   9x+6

bring down the 6 on both sides

6+6=12

12= 9x

divide by 9

12/9 =

1.3 =x