Chapter 1: Solving Equations and Inequalities

Solve the equation.

$2\left(a-1\right)=8a-6$

Use the following information.

The product of any two whole numbers is always a whole number. So, the set of whole number is said to be closed under multiplication. This is an example of the Closure Property.

State whether each statement is true or false. If false, given a counterexample.

77. The set of whole numbers is closed under division.

In triangle PQR,$\overline{QS}$and $\overline{SR}$are angle bisectors and angle $P=74°$. How many degrees are there in angle QSR?

A. 106

B. 121

C. 125

D. 127

E. 143

Solve the equation.

$48+5y=96-3y$

Find the value of each expression

$9{\left(4-3\right)}^5$

Solve the equation.

$\frac{2x+3}{5}=\frac{3}{10}$

Simplify each expression.

$2x+9y+4z-y-8x$

Find the value of each expression

79. $5+9÷3\left(3\right)-8$

8. Name the property illustrated by $bc+\left(-bc\right)=0$

Name the property illustrate by each statement.

$\left(3x+2\right)-5=\left(3x+2\right)-5$