Add the numbers inside the parentheses
7x(15+4)=(7x)+(7+4)
and you get
7x*19= 7x+11
Calculate the product
133x=7x+11
Move variable to the left hand side & change its sign
133x-7x=11
Collect like terms
126x=11
Divide both sides by 126 & you get
x=11/126
Answer: x= 11/126
Hope this helps ʕ•ᴥ•ʔ
