Proving the congruent supplements theorem given Angle1 and Angle2 are supplements, Angle3 and Angle4 are supplements, and Angle1 is congruent to Angle4. I already have the answer, I'm just trying to help people.

yor answer is 7/6 times 5

step-by-step explanation:

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116

7/2

(decimal: 3.5)

welcome ; )

step-by-step explanation: