15
To simplify the expression (4x + 6x), you combine like terms by adding the coefficients of (x). This gives you (4 + 6 = 10), so the simplified expression is (10x).
13+-12--5 = 6
OK. If the x is a multiply symbol, -933
6
Same as subtracting 6 from 7 = K
6
It is: 3y-6
To simplify the expression (4x + 6x), you combine like terms by adding the coefficients of (x). This gives you (4 + 6 = 10), so the simplified expression is (10x).
13+-12--5 = 6
OK. If the x is a multiply symbol, -933
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.
a= -0.8
By multiplying out the brackets it then is -10+24t-48 = 24t-58 when simplified
Collect like terms: 9a -7a = 9 - 15, ie 2a = -6, so a = -3
-4