Question

A) 3(4x-2z) - (5z + 10x); 6)-3(3a+1)-5(a-3b).​

Answer 1

Ответ:

Объяснение:

A) 3(4x-2z) - (5z + 10x)=

12х-6z-5z-10x=2x-11z.

Б)-3(3a+1)-5(a-3b)=-9a-3-5a+15b=-14a-3+15b.

Answer 2

Sure, let's simplify these expressions:

A) 3(4x - 2z) - (5z + 10x):

First, distribute the 3 on the left side:

3 * 4x = 12x 3 * (-2z) = -6z

Now, we can rewrite the expression:

12x - 6z - (5z + 10x)

Next, distribute the negative sign on the right side:

-(5z) = -5z -10x

Now, we can combine like terms:

(12x - 10x) - (6z - 5z)

2x - 1z

So, the simplified expression is:

2x - z

B) -3(3a + 1) - 5(a - 3b):

First, distribute the -3 on the left side:

-3 * 3a = -9a -3 * 1 = -3

Now, distribute the -5 on the right side:

-5 * a = -5a -5 * (-3b) = 15b

Now, we can rewrite the expression:

-9a - 3 - (5a + 15b)

Next, distribute the negative sign on the right side:

-(5a) = -5a -(15b) = -15b

Now, we can combine like terms:

(-9a - 5a) - (3 - 15b)

-14a - 3 + 15b

So, the simplified expression is:

-14a + 15b - 3