If angle a is (2x+15) and angle b is (5x-12) find the value of x please help

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

is there a graph

step-by-step explanation:

it's undefined because anything multiplied by 0 is 0. that said, 7 days is 168 hours