2c + 4 - 3c = -9 + c + 5 -c + 4 = c - 4 -2c = -8 2c = 8 c = 4
6c.
The expression is 5d+2c and the unknown variables are d and c
9/12
Why are Quadratic equations, which are expressed in the form of ax2 + bx + c = 0, where a does not equal 0,
c-2b
4 + 3c = 2c + 2Subtract 4 from each side:3c = 2c - 2Subtract 2c from each side:c = -2
If 9 - 2c + 3 = -13, then c would be 12.5
2c + 4 - 3c = -9 + c + 5 -c + 4 = c - 4 -2c = -8 2c = 8 c = 4
2c
5b+c-43b-2c+1=1-38b-c
It is: 2c+8
6c.
2b + 2c or 2(b + c)
4b - 2c is an expression, which is equal to 2(2b - c)
Without any information about a or b or c, all that can be said is: a + b + 2c = a + b + 2c Not particularly illuminating!
4c2 + 5c + 2c = 4c2 + 7c = c(4c + 7)