Solutions of a linear equation are that make the equation true.

The solution of a linear equation is the point that make the equation true.

Step-by-step explanation:

The solution of a linear equation is the point that make the equation true.

A single variable linear equation is sufficient to get definite solution.

Let the equation be ax + b = 0, then the solution is . Again, if we put in the above equation then it must satisfy the equation i.e. it makes the equation true.  

Again, in the case of a double variable linear equation, one system of equations is sufficient to solve the equations.

Let there are two equations of variables x and y  

ax + by + c = 0 and  

px + qy + r = 0.

If we solve the above two equations then we will get a definite solution say (m,n). Now, this solution (m,n) makes the two equations simultaneously true. (Answer)

the answer will be b x² +x-1

step-by-step explanation:

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places