To make the expression a(x+3) equivalent to 7x+21, we need to find the value of a.
We distribute the "a" to both terms inside the parentheses (x+3).
a(x+3) = ax + 3a
Comparing this expression with 7x + 21, we see that the coefficient of x is "a" and the constant term is 3a.
We are given that the expression 7x + 21 is equivalent to a(x+3), so we can set up the equation:
7x + 21 = ax + 3a
Now we can solve for "a".
Rearranging the terms, we have:
7x - ax = 3a - 21
Factoring out the common factor of "x" and "a" on the left side:
x(7 - a) = 3a - 21
Divide both sides by (7 - a):
x = (3a - 21)/(7 - a)
To find the value of "a", we need more information or a specific value for "x".
What value of a would make the expression a(x+3) equivalent to 7x+21 ?(1 point)
2 answers
NOT IT