bsjzkalP
bsjzkalP
22-11-2017
Mathematics
contestada
3x-4y=65? What is the value of x? When y=4
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pbcup101
pbcup101
22-11-2017
16.3=x this is my guess
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Аноним
Аноним
22-11-2017
1. Substitute 7 with 4
3x - 4(4) = 65
3x - 16 = 65
2. Solve
3x - 16 = 65
+16 +16
3x = 81
3 3
x = 27
3. Check (Optional)
3(27) - 4(4) = 65
81 - 16 = 65
65 = 65
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