Find the missing coordinate to complete the ordered-pair solution to the given linear equation. 5x - 4y= 21
(a) (-3, )
(b)(,1) plz help

i dont know

step-by-step explanation:

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.

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step-by-step explanation:

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