What is the answer to (x+5)/7 =(x+8)/4 ?

The answer to (x+5)/7 =(x+8)/4 is x=-12

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(x+5)/7 =(x+8)/4

\frac{x + 5}{7} = \frac{x + 8}{4}

x = - 12

Solution steps

\frac{x + 5}{7} = \frac{x + 8}{4}

Apply fraction cross multiply: if

\frac{a}{b} = \frac{c}{d}

then

a \cdot d = b \cdot c

(x + 5) \cdot 4 = 7 (x + 8)

Expand

(x + 5) \cdot 4 : 4 x + 20

Expand

7 (x + 8) : 7 x + 56

4 x + 20 = 7 x + 56

Move

20

to the right side

4 x = 7 x + 36

Move

7 x

to the left side

- 3 x = 36

Divide both sides by

- 3

x = - 12

8 d - 6 d = 10

4 (x - b) = x

- 15 + (- 5 x) = 0

y = 3^{4}

z = \frac{1}{i} + \frac{2 - 3 i}{1 - 2 i}

What is the answer to (x+5)/7 =(x+8)/4 ?
The answer to (x+5)/7 =(x+8)/4 is x=-12
Solve for x: (x+5)/7 =(x+8)/4
The solution is x=-12