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solve for x 8/9x +4=12

Sagot :

hello

to solve for x, we have to simplify this equation

step one

collect like terms

[tex]\begin{gathered} \frac{8}{9}x+4=12 \\ \frac{8}{9}x=12-4 \\ \frac{8}{9}x=8 \\ \end{gathered}[/tex]

step two

cross multipy both sides

[tex]\begin{gathered} \frac{8}{9}x=8 \\ 8x=8\times9 \\ 8x=72 \end{gathered}[/tex]

step three

divide both sides by the coefficient of x

[tex]\begin{gathered} 8x=72 \\ \frac{8x}{8}=\frac{72}{8} \\ x=9 \end{gathered}[/tex]

from the calculation above, the value of x is equal to 9