Jake and Hannah wash windows. Jake charges $50 plus $2 per window. Hannah charges $20 plus $5 per window. For how many windows washed do they charge the same amount?
1 point

10 windows

Step-by-step explanation:

if u write it out on paper and have the first row start at 50 and go up 2 for each window and have the 2nd row start by 20 and go up by 5 for each window then u will go up until the 10th window is both 70 dollars

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