Homework:
Textbook read pages 124 - 127 , do problems 4-24, even only plus even #'s on classwork sheet not completed in class.
Lesson Review:
http://www.regentsprep.org/Regents/math/ALGEBRA/AE2/LSolvEq.htm
Practice Exercise:
http://www.regentsprep.org/Regents/math/ALGEBRA/AE2/PSolvEq.htm
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3 comments:
Side 1.
1. x + x - 6 = 20
x = 13
2. 15x + 7 - 12 = 4
x=0.6
3. x + 4x + 32 = 12
x= 4
4. 5 ( x + 2 ) = 20
x = 2
5. 8 ( 2c - 1 )= 56
C= 4
6. 30 = 2 ( 10 - y )
-5= y
7. 25 - 2 ( t - 5 ) = 19
t = 8
8. 55 = 4 + 3 ( m + 2 )
15 = m
9. 3 ( 2b + 1 ) - 7 = 50
B= 9
10. 7r - ( 6r - 5 ) = 7
r = 12
11. 5m - 2 ( m - 5 ) = 17
m= 2.3 ( the 3 is repeated! )
12. 3 ( a - 5 ) - 2 ( 2a + 1 ) = 0
a= -13
hiii mr. napoli, this is THERESAAAAAAAAAAAA! XD
textbook 127 #4-24 [even numbahh]
4] x-12+x=38
2x-12=38
2x=50
x=25
6] 14-3c+7c=94 -> 14+4c=94 -> 4c=80 -> c=15
8] 7x-4x+39=0 -> 3x+39=0 -> 3x=-39 ->x=-13
10] 3y-27=30 -> 3y=57 -> y=19
12] 18c-6=-42 -> 18c=-36 -> c=-2
14] 4c+4=32 -> 4c=28 -> c=7
16] 18=-6x+8x+12 -> 18=2x+12 -> 6=2x -> x=3
18] 5x-15-30=10 -> 5x=55 -> x=11
20] 15c-10+8=43 -> 15c-2=43 -> 15c=45 -> c=3
22] 8b-4b+8=24 -> 4b+8=24 -> 4b=16 -> b=4
24] 28y-16y+30=40 -> 12y+30=40 -> 12y=10 -> y = five over six
please check my answers and THANK YOU :D
Theresa Kong ;)
handout side 1:
2] 7x=63-2x
9x=63
x=7
4] 22y-39=5y-18
-39=7y-18
-21=7y
y=-3
6] 5x+7=2x-2
3x+7=-2
3x=-9
x=-3
8] 2x-4=4x+4
-4=2x+4
-8=2x
x=-4
side two:
2] 5y=28+y
4y=28
y=7
4] 8x=90-2x
10x=90
x=9
6] 3n+7=-n-1
4n+7=-1
4n=-8
n=-2
8] -2x+7=-3x+2
x+7=2
x=-5
10] 9y+4=x+4
SORRY MR NAPOLI, BUT I THINK IT SHOULD BE "9X+4=X+4"
9x+4=x+4
8x+4=4
8x=0
x=0
12] 10-x-3x=7x-23
10-4x=7x-23
10=11x+23
33=11x
14] 8d+1=7d-14-2d
8d+1=5d-14
3d+1=-14
3d=-15
d=-5
16] 6h-12-h=9h+53+h
5h-12=10h+53
-12=5h+53
-65=5h
h=-13
textbook pg132
4] 9x=44-2x
11x=44
x=4
6] y=4y+30
-3y=30
y=-10
10] 8y=90-2y
10y=90
y=9
14] 5c=2c-81
3c=-81
c=-27
16] 0.5m-30=1.1m
-30=0.6m
m=-0.02
18]7r+10=3r+50
4r+10=50
4r=40
r=10
24] c+20=55-4c
5c+20=55
5c=35
c=7
26] 7y-5=9y+29
-5=2y+29
34=2y
y=17
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