Question

3 (2×-3)+4 (2-5×)=7 (2-3×)-2 (3×-1)​

Answer 1

Раскрываешь скобки

И в итоге ответ 17/13 или одна целая 4/13

Answer 2

To solve the equation, let's start by simplifying both sides step by step.

Left-hand side (LHS): 3(2×-3) + 4(2-5×)

Apply the distributive property (multiply the number outside the parentheses by each term inside the parentheses):

LHS = 6× - 9 + 8 - 20×

Combine like terms:

LHS = (6× - 20×) + (8 - 9)

LHS = -14× - 1

Right-hand side (RHS): 7(2 - 3×) - 2(3× - 1)

Apply the distributive property:

RHS = 14 - 21× - 6× + 2

Combine like terms:

RHS = (14 + 2) + (-21× - 6×)

RHS = 16 - 27×

Now, the equation becomes:

-14× - 1 = 16 - 27×

To solve for x, isolate the x term on one side:

-14× + 27× = 16 + 1

Combine like terms:

13× = 17

Finally, isolate x by dividing both sides by 13:

x = 17 / 13

The solution to the equation is:

x ≈ 1.31 (rounded to two decimal places)