Question

Tentukan himpunan penyelesaian dari persamaan nerikut dengan menambah atau mengurangi kedua ruas dengan bilangan yang sama,jika variabel pada himpunan bilangan bulat
A.m-9=13
B.-11+x=3
C.2a+1=a-3
D.12+3a=5+2a
E.3(x+1=2(x+4)
F.5(y-1)=4y
G.4(3-2y)=15-7y
H.3(2y-3)=5(y-2)
I.8-2(3-4y)=7y-1
J.5x+7(3x+2)=6(4x+1)

Answer 1

A.M-9=13
M=13+9=22

B.-11+X=3
  X=3+11=14

C.2a+1=a-3
2a-A=-3-1
1A=-4
A=4/1=4

D.12+3A=5+2A
3A-2A=5-12
1A=-7
A=-7

E,3(X+1=2(X+4)
3X+3=2X8
1X=8-3
X=5

Answer 2

A) m - 9 = 13 ..... m = 13 + 9 ....... m = 22....... b ). -11 + x = 3 .....x = 3 + 11 ......x = 14...... c). 2a + 1 = a - 3 ... 2a - a = -3 -1 .....a = -4..... d). 12 + 3a = 5 + 2a ..... 3a - 2a = 5 - 12 .... a = - 7 ..... e ) 3( x + 1 ) = 2 ( x + 4 ) ...... 3x + 3 = 2x + 8 ..... 3x -2x = 8 - 3 ....x = 5 . f ) 5(y -1) = 4y ....5y -5 = 4y ....5y - 4y = 5 ......y = 5 .... g ). 4( 3 - 2y ) = 15 - 7y ....12 -8y = 15 - 7y ....-8y +7y = 15 - 12 ....... .. -y = 3 ......y = -3... h ). 3(2y - 3 ) = 5 ( y - 2 ) .....6y -9 = 5y - 10 .....6y - 5y = -10 + 9 ....y = -1.... I ). 8-2(3-4y) = 7y -1 ...8-6 +8y = 7y - 1 .... 4 + 8y = 7y -1 ....8y -7y = -1 -4 .....Y = -5..... J). 5x +7 (3x +2 ) = 6(4x +1) .....5x + 21x +14 = 24x + 6 ....26x -24x = 6 - 14 ..... 2x = -8 ...... x = -4