What is the answer to 3x+5y=1; -6x-10y=14

Tori examined the pattern of exponents in the table. based on the pattern, which statements are true? check all that apply.

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

Multiplying an even number of negative numbers gives an answer that is choose from: