Question

Can someone plz help me with this math problem

Answer 1

x = 2.5


*EXPLANATION*

38 is the total, knowing that 4 x + 7 make up 38, we can divide 38 by 4.

38 ÷ 4 = 9.5

Now because we know there is a 7 and unknown number added together equals 9.5, we can sibtract to find x.

9.5 - 7 = 2.5


Please pick me as brainliest it would be appreciated :)

Answer 2

Answer:

x = 2.5

Step-by-step explanation:

It's pretty simple because all you're doing is doing the reverse order of operations. PEMDAS is as follows: parenthesis, exponents, multiplication, division, addition, and subtraction. So, if we knew what x was equal to but not the answer (38) then we would first add x and 7 together (which is inside parenthesis), then we would multiply that by 4. So if we knew x but not the answer (38), the equation would look like this:

4(2.5 + 7)=?

Then we would solve that using PEMDAS.

But we have to find x, so we do the reverse order of operations to "undo" the equation which will find x. So, here is the math for that:

4(x+7)=38

4(x+7) / 4 = 38 / 4

x+7 = 9.5

x + 7 - 7 = 9.5 - 7

x = 2.5

Ez pz