Problem
Algebra II Practice Chapter Name: Date: Chapter 1: Solving Equations and $\mathrm{Pr}$ Practice: Simplifying Expressions and Solving Variable Directions: Simplify the following expressions. 1.) $7 x-2+3(x-9)+5$ 2. $40 \div 4-3(9-2)$ 3. $2^{2}-5(x+3)$ 4. $2(x-5)+3(x+11)-x$ 5.). $3 x-6(2-x)+3(x-2)+8$ 6. $a-2 a-[3 a-(4 a-5)]$ 7. $3^{3} a-2^{4} a+7 a-2(9-a)$ 8. $13(5-t)-(5-t)-12(5-t)$ Directions: Simplify and solve the following equations. Work if you need more room. 9. $2 a+3 a-13=a+3$ (10.) $3(x-5$
Solution
Step 1 ：Distribute the 3 to both x and -9 in the expression $7x - 2 + 3(x - 9) + 5$ to get $7x - 2 + 3x - 27 + 5$
Step 2 ：Combine like terms to get $10x - 24$
Step 3 ：The simplified expression is \(\boxed{10x - 24}\)
