We could represent this in an Algebraic equation, where "x" is the missing number. If we write out the equation we will get:
x + (-12) = 19. We simply add 12 to both sides.
x + (-12) + 12 = 19 + 12.
x = 19 + 12
x = 31.
When 31 must be added to -12 to obtain 19.
24
Well,-3+-9=-12
4 litres
It is: 36-12 = 24
3, -15
-1 and -12
-40
2
Both of the constants must be negative. x2-8x+12 = (x-2)(x-6) That 2 numbers added together equals -8 and when multiplied equals 12 By the way it is not an equation because it is a quadratic expression.
15 and -3
67
400 - 378 = 22