An equation where c = 5
That would be 10
Without any information about a or b or c, all that can be said is: a + b + 2c = a + b + 2c Not particularly illuminating!
4 + 3c = 2c + 2Subtract 4 from each side:3c = 2c - 2Subtract 2c from each side:c = -2
2c + 3 = 15 Subtract 3 from both sides: 2c = 12 Divide both sides by 2: c = 6
2c + 4 - 3c = -9 + c + 5 -c + 4 = c - 4 -2c = -8 2c = 8 c = 4
An equation where c = 5
4c-7 = 2c+11 4c-2c = 11+7 2c = 18 c = 9
That would be 10
Without any information about a or b or c, all that can be said is: a + b + 2c = a + b + 2c Not particularly illuminating!
(b + 2c)(b - c)
If 9 - 2c + 3 = -13, then c would be 12.5
4 + 3c = 2c + 2Subtract 4 from each side:3c = 2c - 2Subtract 2c from each side:c = -2
It is an equation and the value of c is -7
2c + 3 = 15 Subtract 3 from both sides: 2c = 12 Divide both sides by 2: c = 6
c - 5d = 2 2c + d = 4 Multiply eqn 1 by 2: 2c - 10d = 4 Subtract this from eqn 2: 0c + 11d = 0 which implies that d = 0 Then, by eqn 1, c = 2
2c 2(5) 10 The answer is 10. You plug in the value of 5 for c. When the number and variable touch directly it implies multiplication.