how do i solve 7m=4m+21
again...
7x=4x+21 subtract
3x=21 divide
x=7
does this help at all?
To solve the equation 7m = 4m + 21, you need to isolate the variable "m" on one side of the equation. This can be done by performing inverse operations.
Step 1: Simplify the equation by combining like terms:
7m = 4m + 21
Step 2: Subtract 4m from both sides of the equation to isolate the variable on one side:
7m - 4m = 4m + 21 - 4m
3m = 21
Step 3: Divide both sides of the equation by 3 to solve for "m":
3m/3 = 21/3
m = 7
Therefore, the solution to the equation 7m = 4m + 21 is m = 7.