(7-3)x(9-2)= what I am stuck help me

1 answer:

3 0

7-3=4
9-2=7
4x7=28
Use PEMDAS for order of operations, it will save your life
Parenthesis Exponents Multiply Divide Add Subtract
Multiply and Divide and Add and Subtract can be switched around with each other, but multiply and divide always happens before add and subtract. The reason you add first here is because it is in the parenthesis.

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Complete the statement If x/7 = 5/3, then x+7/7 =?

lawyer [7]

Lets get started :)

$\frac{x}{7} = \frac{5}{3}$
We can cross multiply, to find the value of x
3x = 7 x 5
3x = 35
We have to divide by 3 on either sides to isolate x
$\frac{3x}{3} = \frac{35}{3}$
3 and 3 cancels out

x = $\frac{35}{3}$

Then, x + $\frac{7}{7}$ ( 7 divided by 7 is 1)
$\frac{35}{3}$ + 1 = $\frac{38}{3}$

6 0

3 years ago

Can someone explain how to do this please?<br><br> 3 I2x-3I+2=3

Dmitry [639]

I think this is correct-scroll down through the picture