Chapter 2: Solving Equations

In Exercises 1 and 2, write the verbal sentence as an equation.

The sum of 3 and z is 10.

Solve the equation. Check your solution.

$x+8=19$

Copy and complete:Addition and subtraction are _____ operations.

Evaluate the expression. Justify each of your steps.

$1.29+18+21$

For the given expression,identify the terms, like terms, coefficients, and constant terms. Then simplify the expression.

$3x+2+5x$

Use the distributive property to evaluate the expression.

$3(8+5)$

Copy and complete: The sum of a positive decimal and a negative decimal has the same sign as the decimal with the greater _?_.

In Exercises 1–3, evaluate the expression. Justify each of your steps.

Which property allows you to write?

$4 + (3 +9 ) = (4 +3)+9$

What property is illustrated by the statement: $3(4-9)= 3\left(4\right) - 3\left(9\right)$?