traceykks
traceykks
29-03-2022
Mathematics
contestada
please help!!!! thanks
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boatengalbert291
boatengalbert291
29-03-2022
B. 2a -21 = 1
2/3 a -7 = 1/3
Multiply through by 3
(2/3 a)(3) -(7x3) = 1/3 x 3
2a - 21 = 1
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