The as were is XY=22/sin(4)
C - Parenthesis first (3-1)=2, then distribute the 4. 4x2=8, next add 5, 8+5=13.
4. 3x+(-x)=4
3x-x=4
2x=4
x=4/2
answers:
x=2
y=-2
5.
y=x-1
4x-y=19
-x+y=-1
4x-y(cross the y’s out they cancel eachother)=19
3x=18
x=6
-6+y=-1
y=-1+6
y=5
answers:
x=6
y=5