Use Gauss-Jordan elimination to find the generalsolution for the following system of linear equations:. z2+ 3z3−z4= 0
−z1 − z2 − z3 + z4 = 0
−2z1 − 4z2 + 4z3 − 2z4 = 0

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

Segment xy is dilated through point m with a scale factor of 2. which segment shows the correct result of the dilation

If i have a 24 in loaf of bread and i cut it into two pieces one 9 in how long was the other