Table of Contents
How do you solve 3x 10 8?
3 x − 10 = 8 3x-10=8 3x−10=8. Add 10 to both sides. Simplify 8 + 10 8+10 8+10 to 18. Divide both sides by 3.
How do you find the solution of an equation?
Determine whether a number is a solution to an equation.
- Substitute the number for the variable in the equation.
- Simplify the expressions on both sides of the equation.
- Determine whether the resulting equation is true. If it is true, the number is a solution. If it is not true, the number is not a solution.
What is the answer to 2x 5 9?
2 x + 5 = 9 2x+5=9 2x+5=9. Subtract 5 from both sides. Simplify 9 − 5 9-5 9−5 to 4. Divide both sides by 2.
What is the first step to solve 11 3x 44?
What is the first step to solve this equation: 11 – 3x = 44 Add 3 to both sides. Add 11 to both sides. Subtract 11 from both sides. Divide 3 on both sides.
How do you solve 5x 14 8x 4?
- 5 x – 14 = 8 x + 4. 5x−14=8x+4. Subtract 8x from both sides. Subtract 8x from both sides.
- 5x-14-8x=4. 5x−14−8x=4. Combine 5x and -8x to get -3x.
- -3x-14=4. −3x−14=4. Add 14 to both sides.
- -3x=4+14. −3x=4+14. Add 4 and 14 to get 18.
- -3x=18. −3x=18. Divide both sides by -3.
- x=\frac{18}{-3} x=−318 Divide 18 by -3 to get -6.
How do you find the value of x in an equation?
Isolate “x” on one side of the algebraic equation by subtracting the sum that appears on the same side of the equation as the “x.” For example, in the equation “x + 5 = 12”, rewrite the equation as “x = 12 – 5” and solve for “x.” The solution is “x = 7.”
How do you write X in math?
The letter “x” is often used in algebra to mean a value that is not yet known. It is called a “variable” or sometimes an “unknown”. In x + 2 = 7, x is a variable, but we can work out its value if we try! A variable doesn’t have to be “x”, it could be “y”, “w” or any letter, name or symbol.
What is the answer to 2x 8 6?
2 x − 8 = 6 2x-8=6 2x−8=6. Add 8 to both sides. Simplify 6 + 8 6+8 6+8 to 14. Divide both sides by 2.
What is the answer for 4 3x 7?
The answer is 12x+28 .
What is the goal when solving an equation?
The goal in solving an equation is to get the variable by itself on one side of the equation and a number on the other side of the equation. To isolate the variable, we must reverse the operations acting on the variable.
What is the answer to 3x 7 8?
3 x − 7 = 8 3x-7=8 3x−7=8. Add 7 to both sides. Simplify 8 + 7 8+7 8+7 to 15. Divide both sides by 3.