The value of x = 97
The unknown angles : 97°,97°, 107° and 59°
Further explanation
One variable linear equation is an equation that has a variable and the exponent number is one.
Can be stated in the form:

or
ax + b = c, where a, b, and c are constants, x is a variable
The parallelogram has total angle of 360°.
The value of each of the 4 angles of the parallelogram :
1. x°
2. x°
3. x+10°
4. 59°
The sum of the four angles of this parallelogram is :

So that the mathematical equation becomes (by combining the like terms) :

So the value of the four angles (by entering the x value)
1. 97°
2. 97°
3. x+10=97+10=107°
4. 59°