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2 years ago

Which number from the set {0, 2, 4, 6} makes the equation true?

Mathematics

2 answers:

Damm [24]2 years ago

4 0

7x - 3 + 4x = 19

7x + 4x - 3 = 19

11x - 3 = 19 | + 3

11x - 3 + 3 = 19 + 3

11x = 22 | : 11

11x : 11 = 22 : 11

x = 2

Answer B.

Alik [6]2 years ago

3 0

Answer:

B) 2

Step-by-step explanation:

(7x2) - 3 + (4x2) =19

14 - 3 + 8 = 19

11 + 8 = 19

19 = 19

the ecuation is true because both members are equals

when you have an expression like this you have to remeber that there are priorities

, first you have to solve the multiplications and division, then you have to solve the sum and the subtraction.

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$4x=5x-15$

Step 7. Subtract $5x$ from both sides

$4x-5x=-15$

Step 8. Simplify $4x-5x$ to $-x$

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Step 9. Multiply both sides by $-1$

$x=15$

Done! :) Hope this helps! :)

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