Question

-2, 4m*(-3) a-(a+5) +(-7+a) -8a-12b+5a+17b -5(y-4) +(y+5)

Answer 1

-2,4m · ( -3 ) = 7,2m

a - ( a + 5 ) + ( -7 + a ) = a - a - 5 - 7 + a = -12 + a

-8a - 12b + 5a + 17b = -8a + 5a - 12b + 17b = -3a + 5b

-5 ( y - 4 ) + ( y + 5 ) = -5 · y - 5 · ( -4 ) + y + 5 = -5y + 20 + y + 5 = -4y + 25

Answer 2

Let's simplify the expression step by step:

-2 + 4m * (-3) = -2 - 12m (Multiply -3 by 4m)

a - (a + 5) = a - a - 5 = -5 (Subtract a from a)

(-7 + a) = a - 7 (Combine -7 and a)

-8a + 5a = -3a (Combine like terms -8a and 5a)

-12b + 17b = 5b (Combine like terms -12b and 17b)

-5(y - 4) = -5y + 20 (Distribute -5 into y and -4)

(y + 5) = y + 5 (No simplification needed)

Now, let's put it all together:

-2 - 12m - 5 + (a - 7) - 3a + 5b - 5y + 20 + y + 5

Now, let's simplify further by combining like terms:

-2 - 5 - 7 + 20 + 5 + a - 3a + y - 5y + 5b - 12m

Combine constants:

(20 - 2 - 5 - 7 + 5) = 11

Combine "a" terms:

(a - 3a) = -2a

Combine "y" terms:

(y - 5y) = -4y

Combine "m" terms:

(-12m)

Now, let's put it all together:

11 - 2a - 4y - 12m

So, the simplified expression is:

11 - 2a - 4y - 12m