3y - 3 = 2y + 5 3y - 2y = 5 + 3 y = 8
x + 3
9x + 5 = 4x + 3 Subtract 4x from both sides: 5x + 5 = 3 Subtract 5 from both sides: 5x = - 2 Divide both sides by 5: x = -2/5 or -0.4
13
-3
2a + 4b - 52a + 4b - 52a + 4b - 52a + 4b - 5
3a + 4b - 5 - 1a + 7b + 3 - 1b 2a + 10b - 5 + 3 2a + 10b - 2
To simplify the expression 2a - 3 + 4b - 2a - b - 3 + 5, we first combine like terms. Combining the terms with 'a', we have 2a - 2a = 0. Combining the terms with 'b', we have 4b - b = 3b. Combining the constants, we have -3 - 3 + 5 = -1. Therefore, the simplified expression is 3b - 1.
3b -1
2a-6a-a=b+4b-4b -5a=5b-4b -5a=1b a=-5 b=1
If 3a+5=5a+3, then: 3a+5 - 3a = 5a+3 - 3a 5=2a+3 5 - 3=2a+3 - 3 2=2a a=1
9a +8 -2a -3 -5a = 2a +5
(6a3 - 19a2 + 15a)/(2a - 3) = a(6a2 - 19a + 15)/(2a - 3) = a(2a - 3)(3a -5)/(2a -3) = a(3a - 5)
2a+5a=3 7a=3 a=3/7 or .4286
(a - 5)(a + 3) = a2 - 2a - 15
It is: (2*3)+5 = 11
9a +8 -2a -3 -5a = 2a +5