write an equation of a line in the slope intercept form that passes through the point (8,9) and has a slope of 3​

Answer is in the photo. I can only upload it to a file hosting service. link below!

cutt.ly/zxt1ipy

do you mean add both of the equations together

because if you do the answer is 10x-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