Question

-24×(7-9у)=-48(5+7а)×15=-30

Answer 1

$- 24 \times (7 - 9y) = - 48 \\ 7 - 9y = 2 \\ - 9y = 2 - 7 \\ - 9y = - 5 \\ y = \frac{5}{9} \\[tex](5 + 7a) \times 15 = - 30 \\ 75 + 105a = - 30 \\ 105a = - 30- 75 \\ 105a = - 105 \\ a = - 1$

Answer 2

-24×(7-9у)=-48
-168 + 216y = -48
216y = -48 + 168
216y=120
y= 5/9
........

(5+7а)×15=-30
70 + 105а= -30
105а= -30 - 70
105а= -105
а= -1

Answer 3

To solve the equation -24×(7-9y) = -48(5+7a)×15 = -30, we'll simplify it step by step. However, it seems there is an error in the equation you provided because the equal sign (=) appears twice. Let's assume you meant to write two separate equations.

Equation 1: -24×(7-9y) = -30 Equation 2: -48(5+7a)×15 = -30

Now, let's solve each equation:

Equation 1: -24×(7-9y) = -30

First, let's simplify the expression inside the parentheses:

-24×(7-9y) = -30 -24×7 + 24×(-9y) = -30 -168 - 216y = -30

Next, we'll isolate the variable y:

-216y = -30 + 168 -216y = 138

Dividing both sides by -216:

y = 138 / -216 y ≈ -0.639

So, the solution for Equation 1 is y ≈ -0.639.

Now, let's move on to Equation 2: -48(5+7a)×15 = -30

First, let's simplify the expression inside the parentheses:

-48(5+7a)×15 = -30 -240 - 336a × 15 = -30 -240 - 5040a = -30

Next, we'll isolate the variable a:

-5040a = -30 + 240 -5040a = 210

Dividing both sides by -5040:

a = 210 / -5040 a ≈ -0.042

So, the solution for Equation 2 is a ≈ -0.042.

Please note that these solutions are approximate decimal values.