320 tolerance +/- 20 ? Did I get it right?
26 = 30 - 6a Taking 30 off each side gives, 26 - 30 = -4 = -6a Dividing each side by -6 gives, -4 / -6 = a, thus a = 2/3 or 0.667
-6a + 8 = 2 -6a = -6 a = 1
3(6a + 5) + 30 18a + 15 + 30 18a + 45
A=2
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320 tolerance +/- 20 ? Did I get it right?
26 = 30 - 6a Taking 30 off each side gives, 26 - 30 = -4 = -6a Dividing each side by -6 gives, -4 / -6 = a, thus a = 2/3 or 0.667
3a + 5b - 6a - 9b = -3a - 4b
-6a + 8 = 2 -6a = -6 a = 1
6a to the second power minus 8ab + 2a
5a+5=6a-7
A=5How to do it:30=6aa=6/6 (Do on both sides) 30/6a=(6/6 cancels out) 30/6a=5
3(6a + 5) + 30 18a + 15 + 30 18a + 45
6a -12b + 30 = 6 (a - 2b + 5)
A=2
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