7(1-3m) - 4
Multiply each term inside the parentheses by the number or variable outside the parentheses. For example, to simplify 2(x+3), you would multiply 2 by both x and 3, resulting in 2x + 6. Now combine like
terms
To simplify 7(1-3m) - 4, we first distribute the 7 to both terms inside the parentheses:
7 * 1 = 7
7 * (-3m) = -21m
Now we can write the expression as:
7 - 21m - 4
Taking the next step, we can combine like terms by adding 7 and -4:
(7 - 4) - 21m
Resulting in:
3 - 21m