In 7x + 8, what is the variable? the coefficient? the constant?

Hello!

A variable is a number, and that number can be anything. Variables are usually symbolized as an alphabet letter.

A coefficient is a number used to multiply a variable.

A constant is a number that never changes and is on its own, meaning it doesn't have a variable connected to it.

In the expression 7x + 8,

Answers:

Variable: x

Coefficient: 7

Constant: 8

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116

answer: x=60