I: 2x+y=5
II:3x+2y=4
start by eliminating y
-2*I: -4x-2y=-10
II: 3x+2y=4
add both equations together
-2*I+II: -4x-2y+3x+2y=-10+4
-1x=-6
x=6
insert x=6 into I:
2*6+y=5
y=5-12
y=-7
so the solution is x=6, y=-7
Answer:
Grace
Step-by-step explanation:
Chelsea and Roan didn't distribute the negative sign in the second half of the first expression.
-2(x - 8) is
-2(x) + (-2)(-8)
-2x + 16
Answer:
60.72
Step-by-step explanation:
Monday: 60 degrees
Tuesday: temperature increases by 10 percent
60 + 10% of 60
60 + .10*60 = 70 +6 = 66
Wednesday: temperature decreases by 8 percent
66 - 8%of 66
66 - .08*66 = 66 -5.28=60.72
Answer:
both because thats what i think
Answer:
A
Step-by-step explanation:
Use POE, none of the answer makes any sense
