Question

Tentukanlah penyelesaian persamaan berikut lengkap dengan caranya!
1. m+10=15
2. 6+p=19
3. t+(-2)=-15
4. z+5=-21
5. 21+q=75
6. 8f-7f+7=19
7. 2r+3=r+7
8. 8y+15=7y+5
9. 3d-17=2d+5
10. 5r+30=15+4r

Answer 1

1. 5+10=15
2.6+13=19
3.

Answer 2

1) m = 15 - 10
= 5
2) p = 19 - 6
= 13
3) t + (-2)=-15
t = -15 + 2
t = -13
4. z+5=-21
z= -21 - 5
z = - 26
5. 21+q=75
q = 75 - 21
q = 54
6. 8f-7f+7=19
8f - 7f = 19-7
f= 12
7. 2r+3=r+7
2r - r = 7-3
r = 4
8. 8y+15=7y+5
8y - 7y = 5 - 15
y = -10
9. 3d-17=2d+5
3d - 2d = 5 + 17
d = 22
10) 5r - 4r = 15 - 30
r = - 15