Solve the following equation
6f+5=8f-7
Solve for f
6f + 5 = 8f - 7
Group variables
Group our variables 6f and 8f
subtract 8f from both sides
6f + 5 - 8f = 8f - 7 - 8f
Cancel 8f on the right side:
-2f + 5 = -7
Divide each side by 6
| 6f | |
| 6 |
| = |
| 5 |
| 6 |
Group constants
Group our constants 5 and -7.
subtract 5 from both sides
-2f + 5 - 5 = -7 - 5
Cancel 5 on the left side:
-2f = -12
Divide each side of the equation by -2
| -2f | |
| -2 |
| = |
| -12 |
| -2 |
f = 6
Final Answer
f = 6
Common Core State Standards In This Lesson
6.EE.B.5, 6.EE.B.7, 8.EE.A.2, 8.EE.C.7.B, HSA.CED.A.1, HSA.REI.A.1, HSA.REI.A.2, HSA.REI.B.3, HSA.REI.B.4.B
What is the Answer?
f = 6
How does the Equation and Inequalities Calculator work?
Free Equation and Inequalities Calculator - Solves an equation or inequality with 1 unknown variable and no exponents as well as certain absolute value equations and inequalities such as |x|=c and |ax| = c where a and c are constants. Solves square root, cube root, and other root equations in the form ax^2=c, ax^2 + b = c. Also solves radical equations in the form asqrt(bx) = c. Also solves open sentences and it will solve one step problems and two step equations. 2 step equations and one step equations and multi step equations
This calculator has 1 input.
This calculator has 1 input.
What 3 formulas are used for the Equation and Inequalities Calculator?
One Step Equations (Division):
cx = b
x = b/c
One Step Equations (Addition): x + c = b x = b - c
One Step Equations (Subtraction): x - c = b x = b + c
One Step Equations (Addition): x + c = b x = b - c
One Step Equations (Subtraction): x - c = b x = b + c
What 4 concepts are covered in the Equation and Inequalities Calculator?
- equation
- a statement declaring two mathematical expressions are equal
- equation and inequalities
- unknown
- a number or value we do not know
- variable
- Alphabetic character representing a number
