Solve the following equation
0.5m+m+m-5=100
Solve for m
0.5m + m + m - 5 = 100
Group the m terms on the left:
(0.5 + 1 + 1)m = 2.5m
Form modified equation
2.5m - 5 = + 100
Divide each side by 0.5
| 0.5m | |
| 0.5 |
| = |
| -5 |
| 0.5 |
Group constants
Group our constants -5 and 100.
add 5 to both sides
2.5m - 5 + 5 = 100 + 5
Cancel 5 on the left side:
2.5m = 105
Divide each side of the equation by 2.5
| 2.5m | |
| 2.5 |
| = |
| 105 |
| 2.5 |
m = 42
Final Answer
m = 42
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?
m = 42
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
