15. What is the measure of an angle that is supplementary to an angle of 370?
A.
3230
B.
1270
53°
D. 143

they can both be solutions depends on the equation

step-by-step explanation:

what is the equation? ?

answer: 414,377,008

step-by-step explanation:

just multiply it

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