To check if solutions to linear equations are right, there are a few easy ways to do it:
Substitution: This means you take the answer you have and put it back into the original equation.
For example, if your equation is (2x + 3 = 11) and you think (x = 4) is the answer, you would do this: [ 2(4) + 3 = 11 ] If both sides equal 11, then your answer is correct!
Graphical Method: You can also draw the equation on a graph. Where the line crosses the axis shows the solutions. If your answer is right, it will match up with the right points on the graph.
Inverse Operations: This means working backward with the opposite operations to check each step you took to solve the equation.
Using these techniques can help you be more accurate and understand linear equations better. This is especially important for 8th graders!
To check if solutions to linear equations are right, there are a few easy ways to do it:
Substitution: This means you take the answer you have and put it back into the original equation.
For example, if your equation is (2x + 3 = 11) and you think (x = 4) is the answer, you would do this: [ 2(4) + 3 = 11 ] If both sides equal 11, then your answer is correct!
Graphical Method: You can also draw the equation on a graph. Where the line crosses the axis shows the solutions. If your answer is right, it will match up with the right points on the graph.
Inverse Operations: This means working backward with the opposite operations to check each step you took to solve the equation.
Using these techniques can help you be more accurate and understand linear equations better. This is especially important for 8th graders!