Solve the problem ( Show your work )2x + 10 =- 4x – 9
Answers
-3(b + 9) = -9
First, divide both sides by -3. / Your problem should look like: b + 9 = [tex]\frac{-9}{-3}[/tex]
Second, simplify [tex]\frac{9}{-3}[/tex] to [tex]\frac{9}{3}[/tex] / Your problem should look like: b + 9 = [tex]\frac{9}{3}[/tex]
Third, simplify [tex]\frac{9}{3}[/tex] to 3. / Your problem should look like: b + 9 = 3
Fourth, subtract 9 from both sides. / Your problem should look like: b = 3 - 9
Fifth, simplify 3 - 9 to get -6. / Your problem should look like: b = -6
b = -6
-3(b + 9) = -9
First, divide both sides by -3. / Your problem should look like: b + 9 = [tex]\frac{-9}{-3}[/tex]
Second, simplify [tex]\frac{9}{-3}[/tex] to [tex]\frac{9}{3}[/tex] / Your problem should look like: b + 9 = [tex]\frac{9}{3}[/tex]
Third, simplify [tex]\frac{9}{3}[/tex] to 3. / Your problem should look like: b + 9 = 3
Fourth, subtract 9 from both sides. / Your problem should look like: b = 3 - 9
Fifth, simplify 3 - 9 to get -6. / Your problem should look like: b = -6
b = -6
x = -19/6
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Step-by-step explanation:
Step 1: Define Equation
2x + 10 = -4x - 9
Step 2: Solve for x
Add 4x on both sides: 6x + 10 = -9Subtract 10 on both sides: 6x = -19Divide 6 on both sides: x = -19/6Step 3: Check
Plug in x into the original equation to verify it's a solution.
Substitute in x: 2(-19/6) + 10 = -4(-19/6) - 9Multiply: -19/3 + 10 = 38/3 - 9Add/Subtract: 11/3 = 11/3Here we see that 11/3 does indeed equal 11/3.
∴ x = -19/6 is the solution to the equation.