Answer:
x=17
Step-by-step explanation:
6x+1+4x+9=180
Combine like terms
10x+10=180
Subtract 10 on both sides
10x=170
Divide by 10 on both side
x = 4
The figure in the picture is a parallelogram. In parallelograms diagonals bisect each other. That means that they divide each other in half. That means that 6x + 1 is the same as 4x + 9.
6x + 1 = 4x + 9
2x + 1 = 9
2x = 8
