Sep 27, 2021 · To evaluate − b + 8 for b = 3, we start by substituting the value of b into the expression. Substitute b = 3 into the expression: − b + 8 = − 3 + 8. Now, perform the addition: − 3 + 8 = 5. Thus, the final result of evaluating − b + 8 when b = 3 is 5.

Begin by typing your algebraic expression into the above input field, or scanning the problem with your camera. After entering the equation, click the 'Go' button to generate instant solutions. The calculator provides detailed step-by-step solutions, aiding …

Click the blue arrow to submit and see the result! The equation solver allows you to enter your problem and solve the equation to see the result. Solve in one variable or many.

QuickMath will automatically answer the most common problems in algebra, equations and calculus faced by high-school and college students. The algebra section allows you to expand, factor or simplify virtually any expression you choose.

Enter the expression you want to evaluate. The Math Calculator will evaluate your problem down to a final solution. You can also add, subtraction, multiply, and divide and complete any arithmetic you need. Click the blue arrow to submit and see your result!

solve\:for\:x,\:\frac{x}{a}+b=c ; solve\:for\:y,\:ax+by=c ; solve\:for\:a,\:\frac{3}{a}+\frac{a}{b}=4b ; solve\:for\:t,\:\frac{2t}{k-3}=\frac{8}{k-2t} Show More

Free math problem solver answers your algebra homework questions with step-by-step explanations.

Solve an equation, inequality or a system.

Symbolab: equation search and math solver - solves algebra, trigonometry and calculus problems step by step

Draw, Scan, Solve, and Learn! Solve long equations, draw in landscape! See how to solve problems and show your work—plus get definitions for mathematical concepts. Instantly graph any equation to visualize your function and understand the relationship between variables.