Зr + #= 7
What would the # be for the equation to be r=4

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

Write the expression 7x^3-28xy^2 as the product of 3 factors

Ineed with angles and the measure of them i have abc a is 65 and b is (3x-10) and c is (2x) find the value of x