Solution: Substitute $ a = 5 $ into $ 5(5 + b) = 120 $. Simplify: $ 25 + 5b = 120 $. Subtract 25: $ 5b = 95 $. Divide by 5: $ b = 19 $. - Malaeb
How to Solve the Equation $ 5(5 + b) = 120 $: A Step-by-Step Guide
How to Solve the Equation $ 5(5 + b) = 120 $: A Step-by-Step Guide
Solving linear equations efficiently is a key skill in algebra, and one of the most common types involves substitution and simplification. One such example is solving the equation:
$$
5(5 + b) = 120
$$
Understanding the Context
This equation is easy to tackle when broken down step by step. In particular, substituting $ a = 5 $ simplifies the expression cleanly and leads directly to the solution. Letβs walk through the process.
Step 1: Apply the substitution
Start by substituting $ a = 5 $ into the original equation:
Image Gallery
Key Insights
$$
5(5 + b) = 120
$$
Here, $ a $ represents the constant 5, making this step simple: $ 5(5 + b) $ becomes the left-hand side before substituting.
Step 2: Simplify the equation
Distribute the 5 inside the parentheses:
π Related Articles You Might Like:
π° what are the functions in the skeletal system π° do p waves travel through the continental crust π° mexican united states war π° Mp3Gain Review The Hidden Hack That Makes Mp3S Sound Like Cds 1454713 π° You Wont Believe Whats Coming To Tulsas Airport 769819 π° From Hero To Villain Anakins Shocking Transition To Darth Vader Explained 3362917 π° Punching Simulator 8960055 π° Blood Meridians Savage Judge The Dark Truth Behind His Unforgettable Reign Of Violence 2887504 π° Beyond The Compass Travel To Places That Will Leave You Speechless 2325694 π° National Average Wage 3935291 π° How In The World Does Jello Turn Liquid To Jelly So Fast 2078991 π° Master Bloons Super Monkey Game Like A Prosecrets Inside 1186770 π° Why Every Sql Pro Uses Case Logicyou Must Watch This 6096528 π° Alan Davies 1248260 π° Beck Wiedemann 8360024 π° You Wont Believe What This Rare Oud Maracuja Still Reveals 303253 π° A Closer Look At The Hhs Org Chart Key Roles You Need To Know Before Its Too Late 4547677 π° The Explosive Truth Behind 4L60 Everyones Talking About 3895501Final Thoughts
$$
25 + 5b = 120
$$
Now the equation clearly shows the constant and variable terms, ready for the next step.
Step 3: Isolate the variable term
Subtract 25 from both sides to eliminate the constant on the left:
$$
5b = 120 - 25
$$
$$
5b = 95
$$
This reduces the equation to a simple form where the variable $ b $ can be isolated.
Step 4: Solve for $ b $
Divide both sides by 5: