Matematika Sekolah Menengah Pertama 4x + 5/2x = 18bantu dong​

angusferryulv – April 11, 2023

4x + 5/2x = 18

bantu dong​

[tex]\sf4x + \frac{5}{2} x = 18[/tex]

[tex]\sf \frac{4}{1} x + \frac{5}{2} x = \frac{18}{1} [/tex]

[tex]\sf \frac{4 \times 2}{1 \times 2} x + \frac{5}{2} x = \frac{18 \times 2}{1 \times 2}\to\boxed{\sf samakan \:\: penyebut} [/tex]

[tex]\sf \frac{8}{2} x + \frac{5}{2} x = \frac{36}{2} [/tex]

[tex]\sf( \frac{8}{2} + \frac{5}{2} )x = \frac{36}{2} [/tex]

[tex]\sf \frac{8 + 5}{2} x = \frac{36}{2} [/tex]

[tex]\sf \frac{13}{2} x = \frac{36}{2} [/tex]

[tex]\sf x = \frac{36}{2} \div \frac{13}{2} [/tex]

[tex]\sf x = \frac{36}{2} \times \frac{2}{13} [/tex]

[tex]\sf x = \frac{72}{26} [/tex]

[tex]\sf x = \frac{72 \div 2}{26 \div 2} \to\boxed{\sf sederhanakan}[/tex]

[tex]\boxed{\bf\blue{x = \frac{36}{13} }}[/tex]

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