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Perform the indicated operation:
1
1)  7
4
2 7
2) 
5 8
2
3
3) 4  1
7
4
2 1
4) 4  1
5
3
5
3
5) 3  (1 )
6
5
Simplify:
6) -6x + 3x 2 4 x  (5 x 2 )
7) (-7r)(-5r 2 )
8) 2a(a + 4) -5(3a - 2)
9) 7a - 5(a + 2) - 3 - a
10) Find the value given a = 4, b =3 and c =2: c 3 4ac  2c(b  a)
Solve each equation
3
11) + 5 = 14
x
12) -4y = -4 + 6y
5 7
13)
 6
y y
14) 5y - 5(2y + 2) = 0
Solve for y:
18) 5x -(2 + 7y)
19) -7y + 8x - 9
y
2
20)  (  y )
x
5
Solve each system:
28)
3x + 2y = 9
-4x + 7y = 7
29)
-4x + -2y = 12
-5y - 2x = -10
30)
-2(x + y) - 3 = 5x + 3y -10
-3y - (x +2) = 3y - 5x + 5
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