Simplify the expression:
9x + 3x
12x
Evaluate:
5 + (-2)
3
Evaluate:
2 x (-7)
-14
Solve for x:
x + 9 = 14
x = 5
Evaluate the expression:
y - 7
when y = 10
3
Simplify the expression:
4a - 2b + 4a
8a -2b
Evaluate:
-4 - 7
-11
Evaluate:
-25 ÷ -5
5
Solve for t:
6t = 36
t = 6
Evaluate the expression:
3x + 12
when x = 3
21
Simplify the expression:
5j - 3k + j + 6k
6j + 3k
Evaluate:
24 - (-6)
30
Evaluate:
(-6)(-6)
36
Solve for y:
12y - 7 = 101
y = 9
Evaluate the expression:
6e - 12f
when e = 4 and f = 2
0
Simplify the expression:
x2 + 7x - 4x - 13
x2 + 3x - 13
Evaluate:
-8 - (-12)
4
Evaluate:
12 ÷ (-4)
-3
Solve for b:
b/5 + 14 = 79
b = 325
Evaluate the expression:
2(x+2) - 3y
when x = 8 and y = 10
-10
Simplify the expression:
3(2b - 1) + b
7b - 3
Evaluate:
4 - 10 + (-3)
-9
Evaluate:
(-14)(-0.5) ÷ (-7)
-1
Solve for x:
4(x - 7) + 2x = 2
x = 5
Evaluate the expression:
4 + 2(x - 3y)2 + z
when x = 16, y = 4, and z = 7
43