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what is 14b+3a=91?

I need to find the values of  a and b please



Sagot :

[tex]14b+3a=91\ \ \ \Rightarrow\ \ \ \ 14b=-3a+91\ /:14\\ \\.\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ b=- \frac{3}{14}a +6 \frac{1}{2} \\ \\ \\14b+3a=91\ \ \ \Rightarrow\ \ \ \ 3a=-14b+91\ /:3\\ \\.\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ a=-4 \frac{2}{3}b +30 \frac{1}{3} [/tex]