The unknown number will be x equal to 19.
Linear equation is equation in which each term has at maximum one degree.
Linear equation in variable x and y can be written in the form y = mx + c.
Linear equation with two variables, when graphed on cartesian plane with axes of those variables, give a straight line.
We have to Find a number that,if you add 4 to it,and multiply the answer by 3,and then subtract 4,will give you 65.,
Let the number be x
(x + 4)*3 - 4 = 65
3x + 12 - 4 = 65
3x = 65 - 12 + 4
3x = 57 /3
x = 19
To check;
(19+4)*3-4
= 23*3-4
= 69-4
= 65
Therefore, The unknown number will be x equal to 19.
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