Name: 133
Unit 10 & 11 RETEST: Expressions &
Equations
Knowledge - Parts of equations and expressions.
13
1. Label each as either an equation or an expression.
a) 5x - 3 = 12
b) 6x - 3
c) 7x + 5 = 9
2. Label each part of the equation. (numerical coefficient, variable, constant term.
What are the math questions
5x-3=12
6x-3
7x+5=9
Are they an equation or expressions?

Explanation:

To find - 1. Label each as either an equation or an expression.

a) 5x - 3 = 12

b) 6x - 3

c) 7x + 5 = 9

2. Label each part of the equation. (numerical coefficient, variable, constant term.

What are the math questions

5x-3=12

6x-3

7x+5=9

Are they an equation or expressions?

Solution -

1.

An expression containing variables,  numbers, and  symbols.

An equation that has equal to sign.

a.)

5x - 3 = 12

It is an equation (because it has = sign)

b.)

6x - 3

It is an expression

c.)

7x + 5 = 9

It is an equation (because it has = sign)

2.

Variable is those whose values can be change. For example x, y, z...

Constant term whose values are fixed. For example 10, 4, 5

Numerical coefficient are the constants that placed just before the variable. For example in 4x- 4 is the variable coefficient.

a.)

5x-3=12

5 is Numerical Coefficient

12 and -3  is constant term

x is variable

b.)

6x-3

6 is Numerical Coefficient

-3  is constant term

x is variable

c.)

7x+5=9

7 is Numerical Coefficient

9 and 5  is constant term

x is variable

d bonding propertys

explanation:

carbon can form so many different compounds not just with oxygen