2a-5=-3a
5a-5=0
5a=5
a=0
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a + a + a - 2a = 3a - 2a = a
depends what 'a' =
2a - 4y = 3a - 8a - 5y 7a = -ya = -(y/7)
(3a+4)/12 - (5/3) = (2a-1)/2Multiply each side by 12:(3a+4) - (20) = 6 (2a-1)Eliminate the parentheses:3a + 4 - 20 = 12a -63a -16 = 12a -6Add 6 to each side:3a -10 = 12aSubtract 3a from each side:-10 = 9aDivide each side by 9:-10/9 = a
3a + 4b - 5 - 1a + 7b + 3 - 1b 2a + 10b - 5 + 3 2a + 10b - 2