Answer:
Step-by-step explanation:
So we have the equation:
And we want to find a such that x = 7 is a possible solution.
To do so, substitute 7 for x. Thus:
Multiply the left and distribute the right:
Subtract:
Subtract 14 from both sides:
Divide by -2: "
So, the value of a is 3.
And our equation would be:
And we're done!
Edit: Incorrect Answer
Answer:
983000000
Step-by-step explanation:
Answer:
yes
Step-by-step explanation: