= 5x – x + 3 + 1
= 4x + 4
c. (2y + 15z) – (4y – 8)
= 2y + 15z – 4y + 8
= 2y – 4y + 15z + 8
= –2y + 15z + 8
4. Tentukan hasil pengurangan 5z + 3 oleh 2z – 7
Jawaban:
= (5z + 3) – (2z – 7)
= 5z + 3 – 2z + 7
= 5x – x + 3 + 1
= 4x + 4
c. (2y + 15z) – (4y – 8)
= 2y + 15z – 4y + 8
= 2y – 4y + 15z + 8
= –2y + 15z + 8
4. Tentukan hasil pengurangan 5z + 3 oleh 2z – 7
Jawaban:
= (5z + 3) – (2z – 7)
= 5z + 3 – 2z + 7
Editor: Dyah Sugesti Weningtyas