1 Step
3 x = 21
Evaluate for the missing variable.
3 x = 21
Opposite of multiply 3 is divide 3.
21 divide 3 = 7
Answer: 7
2 x + 1 = 11
Solve for x.
2 x + 1 = 11
- 1 - 1
2 x = 10 Divide both sides by 2
x = 5
Can you combine:
4 T + 8
4 T + 8
No. They are not the same.
4T is a cofficient with a variable.
+8 is a constant.
3 + Y = 10
Evaluate the equation for the missing variable.
3 + Y = 10
Opposite of add 3 is subtract 3.
10 - 3 = 7
Answer: 7
3x - 2 = 10
Solve for X.
3 x -2 = 10
+2 +2 Add 2 to both sides
3 x = 12 Divide both sides by 3
x = 4
8R -4 -3R -1R
8R -4 -3R -1R (You can combine 8R- 3 R- 1R)
4R is left. You can't do anything with -4
Answer: 4R - 4
R / 5 = 7
Evaluate the equation for the missing variable.
R / 5 = 7
the opposite of divide 5 is multiply 5.
7 x 5 = 35
Answer: R = 35
4 x +7 = 15
Solve for x.
4 x +7 = 15
-7 -7 Subtract 7 from both sides
4 x = 8 Divide both sides by 4
x = 2
6P + 2 P -3
6P + 2 P -3 (You can combine 6P+ 2P)
8 P- 3
Answer: 8P -3
W = 9
4
Evaluate the equation to solve for the missing variable.
W = 9
4
the opposite of divide 4 is multiply 4.
4 x 9 = 36
Answer: W = 36
9 x -10 = 26
Solve for x.
9 x -10 = 26
+ 10 + 10 Add 10 to both sides
9 x = 36 Divide both sides by 9
x = 4
25 W + 6 - 3W -2
25 W + 6 - 3W -2 (You can combine: 25W and -3W)
-> 22 W
(You can combine: 6 - 2)
-> 4
Answer: 22W - 4
W - 46 = 110
Evaluate the equation to solve for the missing variable.
W - 46 = 110
The opposite of -46 is to add 46.
110 + 46 = 156
Answer: 156
5 x +5 = 40
Solve for x.
5 x +5 = 40
- 5 - 5 Subtract 5 from both sides.
5 x = 35 Divide both sides by 5
x = 7
-5K - 4 K -36 +4 +13K
-5K - 4K -36 +4 +13K
You can combine: -5K- 4K +13K = 4K
You can combine:-36 + 4 = -32
Final answer: 4K-32