Ikiwa(2a+3)
: 1 = 2a: 4 ; Tafuta thamani ya a.
Suluhu
2a+3 = 2a tunafanya cross multiply.
1
4
1
x 2a = 4 x (2a+3)
2a
= 8a + 12
2a
– 8a = 12
-6a = 12
-6a = 12
-6 -6
a
= -2
Hivyo
thamani ya a ni -2
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