5x + 2 1/4 = 19 1/8
5x + 9/4 = 153/8
5x = 153/8 - 9/4
5x = 153/8 - 18/8
5x = 135/8
x = 135/8 * 1/5
x = 135/40 = 3 3/8 inches <==
Answer:
x=48
Step-by-step explanation:
10x-20+6x+8=180 set the equations together and to equal 180 since a line is 180 degrees
Get the variables together
10x-20+6x+8=180
-6x -6x
4x-20+8=180
add together -20 and 8
4x-12=180
add -12 on each side
4x-12=180
+12 +12
4x=192
divide all by 4
x=48
