0
If you had 4x+5=20, first subtract 5 from each side. Since it was added, you have to do the opposite function. If it was minus 5 then you'd add.
Write it out like this: 4x+5-5=20-5
Solve so you get: 4x=15
Now all you have to do is divide both sides by 4, since you multiplied and that's the number by x.
4x/4=15/4
Solve: x=3.75
(Note: a number with x divided by that number will always equal x, or whatever variable you have.)
What else can I help you with?
Compare the symbolic method for solving linear equations to the methods of using a table or graph?
Equations = the method
What are 3 methods to solving a system of linear equations?
u can use gauss jorden or gauss elimination method for solving linear equation u also use simple subtraction method for small linear equation also.. after that also there are many methods are available but above are most used
How does solving a literal equation differ from solving a linear equation?
Because linear equations are based on algebra equal to each other whereas literal equations are based on solving for one variable.
What is the disadvantage of using the substitution method in solving linear equations rather than the graph method?
There are no disadvantages. There are three main ways to solve linear equations which are: substitution, graphing, and elimination. The method that is most appropriate can be found by looking at the equation.
Who discovered the systems of linear equation?
The concept of systems of linear equations dates back to ancient civilizations such as Babylonians and Egyptians. However, the systematic study and formalization of solving systems of linear equations is attributed to the ancient Greek mathematician Euclid, who introduced the method of substitution and elimination in his work "Elements." Later mathematicians such as Gauss and Cramer made significant contributions to the theory and methods of solving systems of linear equations.
