PLEASE HELP ITS MATH THANK YOU

Use the elimination method to solve the system of equations -x+5y=-4 and 4x+3y=16

John bought 5 lemons and used 2 of them for a salad how much did he use for.a salad . he used % of the lemons.

Simonne used the following steps to simplify the given expression. 12 - 3(-2x + 4) step 1: 12 + (–3)·(–2x) + (–3)·(4) step 2: 12 + 6x + (–12) step 3: 12 + (–12) + 6x step 4: 0 + 6x step 5: 6x what property of real numbers was used to transition from step 3 to step 4? a. identity property of addition b. inverse property of addition c. associative property of addition d. commutative property of addition