0
Clearly, there are some signs missing.
So let's try the four possibilities for the second terms:
1. + and +
3a + 4b = 7a + 4b
Subtract 4b from each side: 3a = 7a
Subtract 3a from each side: 0 = 4a
Answer : a = 0, b indeterminate (ie can have any vaue).
2. + and -
3a + 4b = 7a - 4b
Subtract 4b from each side: 3a = 7a - 8b
Subtract 7a from each side: -4a = -8b or 4a = 8b
Answer: a = 2b
3. - and -
3a - 4b = 7a - 4b
Add 4b to each side: 3a = 7a
Subtract 3a from each side: 0 = 4a
Answer : a = 0, b indeterminate (ie can have any vaue).
4. - and +
3a - 4b = 7a + 4b
Add 4b to each side: 3a = 7a + 8b
Subtract 7a from each side: -4a = 8b or 4a = -8b
Answer: a = -2b
Can't do better than that with the information available.
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What is -7a plus 3a?
-7a + 3a = -4a
Simplify a plus 3a-2 plus 3a?
a + 3a - 2 + 3a. Add the a + 3a + 3a = 7a. You can't combine the -2 & 7a so the solution is: 7a - 2.
7a-17 equals 4a plus 1?
7a-17 = 4a+1 7a-4a = 1+17 3a = 18 a = 6
What is 3a plus 5b plus 7a?
3a+5b+7a=
What is 4a plus 3a?
4a + 3a = (4 + 3)a = 7a
What is the answer to 4a - 5 equals 7a - 7?
4a - 5 = 7a - 7 -5 = 3a - 7 2 = 3a a = 3/2
What is -7a plus 3a?
-7a + 3a = -4a
What is -7a - 10 equals 20 - 3a?
-7a - 10 = 20 -3a-7a + 3a= 20 + 10-4a=30divide by negative 4a=-7.5-7x-7.5=52.5-10=42.5-3x-7.5=22.520+22.5=42.5
Simplify a plus 3a-2 plus 3a?
a + 3a - 2 + 3a. Add the a + 3a + 3a = 7a. You can't combine the -2 & 7a so the solution is: 7a - 2.
7a-17 equals 4a plus 1?
7a-17 = 4a+1 7a-4a = 1+17 3a = 18 a = 6
How do you solve 4a-2 equals 7a-6?
4a-2=7a-6 4=3a a=4/3
What is 3a plus 5b plus 7a?
3a+5b+7a=
What is 4a plus 3a-4 equals 10?
4a+3a-4 = 10 4a+3a = 10+4 7a = 14 a = 2
2a-4y equals 3a - 8a-5y?
2a - 4y = 3a - 8a - 5y 7a = -ya = -(y/7)
What is 3a plus 4?
7a
What is 7a-4a?
11
What is the product of 7a and 3a?
21a2
