Acarpenter lays 1,300 wood shingles the first day, 1,400 the second, and 1,500 the third. how many shingles are used in three days?

With this question, you are just going to add up the three numbers

1,300 + 1,400 + 1,500

This equals 2,200

Hope I helped!

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