4x - 9 = 7x + 12 Help me solve please?
1 answer:
You might be interested in
Answer:
The missing value =
Step-by-step explanation:
Given - Equation: ? + 59 5/8= 82 2/3
To find - Explain (in words) what you would do to find the missing value in
the equation. You do not find the missing number.
Proof -
Let the missing number = x
So, the equation becomes x + =
⇒x = -
=
=
=
=
⇒x =
∴ we get
The missing value =
Explanation -
Here we have given the ? with addition of number that is equation to some number.
We just have to subtract the two numbers to find the missing value , as we do above.