Jawaban:
a. 10a
b. -4a
c. 1a
d. -23a
Penjelasan dengan langkah-langkah:
a.
[tex]3a + 7a = (3 + 7).a = 10a[/tex]
b.
[tex]4a - 8a = (4 - 8).a = - 4a[/tex]
c.
[tex] - 19a + 20a = ( - 19 + 20).a = 1a[/tex]
d.
[tex] - 10a - 13a = ( - 10 - 13).a = - 23a[/tex]
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Jawaban:
a. 10a
b. -4a
c. 1a
d. -23a
Penjelasan dengan langkah-langkah:
a.
[tex]3a + 7a = (3 + 7).a = 10a[/tex]
b.
[tex]4a - 8a = (4 - 8).a = - 4a[/tex]
c.
[tex] - 19a + 20a = ( - 19 + 20).a = 1a[/tex]
d.
[tex] - 10a - 13a = ( - 10 - 13).a = - 23a[/tex]