Eradicate the fractions.
When solving a system of equations by multiplying and then adding or subtracting, you decide whether to add or subtract based on the coefficients of the variables you want to eliminate. If the coefficients of one variable are opposites (e.g., +3 and -3), you would add the equations to eliminate that variable. Conversely, if the coefficients are the same (e.g., +3 and +3), you would subtract one equation from the other to eliminate the variable. The goal is to simplify the system and isolate one variable for easier solving.
You have to decide what the meaning of the equation will be.
When solving a linear system by substitution, it's often best to choose the variable that is easiest to isolate. Look for a variable with a coefficient of 1 or -1, as this will simplify the process of rearranging the equation. If both equations are equally complex, consider which equation seems simpler to manipulate or offers fewer terms. Additionally, choose the variable that appears most frequently, as this can make the substitution process more efficient.
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u decide
The solution to an equation is the solution. It doesn't matter how you decide tofind it. Different people may decide to solve the question in different ways, butall of the correct answers will be the same.If two different methods of solving an equation give you two different answers,then you made a mistake in at least one of them. (Maybe both.)
The rules for solving word problems are read the problem, decide what you need to do, solve the problem, and check your answer.
All of the 'X's and 'Y's in the equation must be to the first power only.Otherwise the equation is not linear.
You have to decide what the meaning of the equation will be.
people and the state
When solving a linear system by substitution, it's often best to choose the variable that is easiest to isolate. Look for a variable with a coefficient of 1 or -1, as this will simplify the process of rearranging the equation. If both equations are equally complex, consider which equation seems simpler to manipulate or offers fewer terms. Additionally, choose the variable that appears most frequently, as this can make the substitution process more efficient.
The judicial branch
Constitutional law
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find the common denominator, then whichever top number is higher is the larger
judicial power
you round fractions by rounding up or down, you can decide to do this when you look at the numerator and decide if it is half of the denominator, if it is half or more than half, you round up. If it is less than half you round down. Another way you can round fractions is dividing the top number by the bottom number (with a calculator), then if the decimal part is 5 or more, round up! (if the decimal is less than 5, round down.)