Solve the system by substitution -x-y-z=-8 -4x+4y+5z=7 2x+2z=4 solve the system by elimination -2x+2y+3z=0 -2x-y+z=-3 2x+3y+3z=5 show your work

What is the value of n in the equation -1/2(2n+4)+6=-9+4(2n+1)

The product of sin 30 degrees and sin 60 degrees is same as the product of

Given: jk ||lm prove: _2 = 27 statement justification 1. jk ||lm 1. given 2.26 = 27 3.22 = 26 2. 3. 4. _2 = 27 4. corresponding angles theorem transitive property of equality vertical angles theorem substitution property of equality