What is a simplified version of -7(2x-3)

What does x = in this equation x+3+2x=x+5

How do i make someone brainliest? (if you answer me, i might be able to make you brainliest! )

Ascientist has 50 grams of a radioactive element. the amount of radioactive element remaining after t days can be determined using the equation (1) after two days the scientist receives a second shipment of 50 grams of the same element. the equation used to represent the amount of shipment 2 remaining after t days is 10) - 50 which of the following is an equivalent form of the expression for the amount remaining in shipment 2? what’s the answer?