Hii.
I'm here to help!
First, we need to work with parenthese. Rembering "Pemdas"
Multiply 7 and 8 to get 56.
56y− 2x/5
To add or subtract expressions, expand them to make their denominators the same. Multiply 56y times 5/5
5x56y
------------ -2x/5
5
Since 5x56y over 5 and 2x over 5 have the same denominator, subtract them by subtracting their numerators.
5 x 56y -2x over 5
Do the multiplications in 5×56y−2x.
280y−2x over 5
7×8y−(2x÷5)
Factor out
5
2
.
5
2(140y−x)
Hope this helps :D