15
6
It is: 3y-6
6
13+-12--5 = 6
Same as subtracting 6 from 7 = K
z + 8 - 2 is an expression, not an equation. An expression cannot be solved. At best, you can simplify it to z + 6.
By multiplying out the brackets it then is -10+24t-48 = 24t-58 when simplified
-4
To simplify the expression 18 + 7x - 12 + 5x, you first combine like terms. Combine the constants (18 and -12) to get 6. Then, combine the x terms (7x and 5x) to get 12x. Therefore, the simplified expression is 6 + 12x.
12a- 6a + a = 7a Since they all have the same variable, you can simply add and subtract 12-6 = 6 6+1 = 7
It is: 4b+6