Question

(x+27)•12=480 (9x+x):4=70​

Answer 1

Ответ:

$13\\28$

Пошаговое объяснение:

$(x+27)\cdot 12=480\ \ \ |:12\\\\x+27=40\\\\x=40-27\\\\x=13\\\\\\\\(9x+x):4=70\\\\10x:4=70\ \ \ |\cdot4\\\\10x=280\ \ \ |:10\\\\x=28$

Answer 2

Let's solve each equation step by step:

1. (x + 27) * 12 = 480

To solve for x, first, divide both sides of the equation by 12 to isolate (x + 27):

(x + 27) * 12 / 12 = 480 / 12

This simplifies to:

x + 27 = 40

Now, subtract 27 from both sides to solve for x:

x = 40 - 27 x = 13

So, the solution to the first equation is x = 13.

2. (9x + x) / 4 = 70

First, simplify the left side of the equation:

(9x + x) / 4 = 70

Combine like terms:

10x / 4 = 70

Now, divide both sides by 10 / 4 (which is the same as multiplying by 4/10 or 2/5) to isolate x:

(2/5) * 10x = 70

2x = 70

Now, divide both sides by 2 to solve for x:

2x / 2 = 70 / 2

x = 35

So, the solution to the second equation is x = 35.