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7a - 5 = 6a + 3
7a - 6a = 3 + 5
a = 8
b)
5x + 3 = 11 + x
5x - x = 11 - 3
4x = 8
x = 8/2
x = 4
c)
4x - 5 = 2x + 3
4x - 2x = 3 + 5
2x = 8
x = 8/2
x = 4
d)
5m + 18 = 2m
5m - 2m = -18
3m = -18
m = -18/3
m = -6
e)
3(x+1) -2(1-x) = -1/2(3-5x)
3x + 3 -2 + 2x = -3/2 + 5x/2
5x + 1 = -3/2 + 5x/2 agar mudah kita kalikan 2 semua ruasnya
10x + 2 = -3 + 5x
10x - 5x = -3 -2
5x = -5
x = -5/5
x = -1
f)
5(y-2) -1/3(3-3y) + 5 = 0 untuk mudahnya kita kalikan 3 semua ruas
15(y-2) - 1(3-3y) + 15 = 0
15y - 30 - 3 + 3y + 15 = 0
18y = -18
y = -18/18
y = -1
untuk grafiknya adee buat garis bilangan pada masing" trus angka yg kk' tebalin itu adee tebalkan
contohnya
grafik jawaban yg e
<------------------------------->
-2 -1 0 1 2 3 4
jika masih blom faham tanyakan yaaa adee