-13=5(1+4m)-2m

-13=5(1+4m)-2m

-13 = 5 + 20m - 2m

-18 = 18m

-1 = m

To solve the equation -13 = 5(1 + 4m) - 2m, we will need to simplify and isolate the variable "m."

Step 1: Distribute the multiplication
-13 = 5 + 20m - 2m

Step 2: Combine like terms
-13 = 5 + 18m

Step 3: Move the constant term to the other side of the equation
-13 - 5 = 18m

Step 4: Simplify
-18 = 18m

Step 5: Divide both sides of the equation by 18 to isolate "m"
-18/18 = m

Step 6: Compute the result
m = -1

Therefore, the solution to the equation -13 = 5(1 + 4m) - 2m is m = -1.