Solving for x
4x = 16
x=4
Evaluate the expression
19-x when x=14
5
Simplify the following expression:

62
-4x-5-165
-4x-170
8(4+2) = ?
48
x-13 = 64
x=77
Evaluate the expression
ab + 7 when a=2 and b=5
17
Simplify the following expression:

5
14x - 12x + 12 - 10 + 9x
11x+2
5(x-3)
5x-15
2(x+4) = 10
x=1
Evaluate the expression
3x2 - 4x when x=-2
20
3 + 42 * (3 + 2)
83
-10x + 15 - 9x
-19x+15
7+9(2x-3)
18x-20
4(x-3) = 20
x=8
Evaluate the expression
a2b-b2 when a=3 and b=-4
-52

45
-2 + 2ab -13 + 5ab -7a
-7a +7ab -15
-3(-x-10)
3x+30
8(x+2)=8
x= -1
Evaluate the expression
-y2 - 3xy when x=-4 and y=2
20

30
8ab2 +3a -10ab2 -2a + 4 + 12
-2ab2 + a +16
-4y(2x - 28y)
-8xy+112y2