You should memorize your addition, subtraction and multiplication and division facts so that you just remember that 5 plus 9 is 14.
It is: 12-8+5 = 9
The equation does not have a solution.
You cannot solve it though it is possible to evaluate the expression. -5 + 9 * 6 = -5 + 54 = 49
7
The answer to the equation 9 plus 5 times 0 equals 45. This was taught in 5 grade math.
u = 7 + 2 + (4 - 5) = 9 + (-1) = 8
4
7y+5=-9... 7y must equal -14 therefore y must be -2
EDUCATION
5 + 4 * 7 * 4 - 9 + 3 / 3 = 5 + 28*4 - 9 + 1 = 5 + 112 - 9 + 1 = 109
-5n+9=-46 -5n+9-9=-46-9 -5n=-55 -5n/-5=-55/-5 n=11
(4+9)+(5−1242) = −1224 (I assume m stands for metres?)