-(-1/4a + 1 ) + 3a/2 = 9
1/4 - jedna czwarta ; D
3a/2 - liczniku jest 3a kreska ułamkowa i w mianowniku 2
proszę mi obliczyć ile wynosi a !
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-(-1/4a +1 ) +3a/2 = 9
1/4a - 1 +3a/2 = 9 /*4
a - 4 + 6a = 36 /+4
7a = 40 /:7
a= 5 i 5/7
- (-1/4a +1) +3a/2 = 9
1/4a -1 +3a/2 = 9 /*4
a - 4+6a = 36
7a = 36 + 4
7 a = 40/:7
a = 5 i 5/7