Question

Solve for x: 7x + 3 = 45

Answer 1

Answer:

$7x + 3 = 45 \\ 7x = 45 - 3 \\ 7x = 42 \\ \frac{7x}{7} = \frac{42}{7} \\ x = 6$

hope this helps....

Answer 2

Answer: x = 6

Step-by-step explanation: To solve for x in the equation you see here, our goal is to get x by itself so we will use inverse operations.

Inverse operations is a technique used to solve equations. It's the same thing as order of operations but it's done in the reverse order.

We can see that we have multiplication and addition going

on in this equation so if we are following inverse

operations, we want to undo addition.

So I am going to use the subtraction property of equality on both sides.

That leaves us with 7x = 42.

Now to undo multiplication, I am going to use the division property of equality and that's used to to get our variable alone.

Dividing both sides by 7, we find that x = 6.