Mister Exam

# Express x in terms of y where 8*x-7*y=-13

A equation with variable:

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8*x - 7*y = -13
$$8 x - 7 y = -13$$
Detail solution
Given the linear equation:
8*x-7*y = -13

Looking for similar summands in the left part:
-7*y + 8*x = -13

Move the summands with the other variables
from left part to right part, we given:
$$8 x = 7 y - 13$$
Divide both parts of the equation by 8
x = -13 + 7*y / (8)

We get the answer: x = -13/8 + 7*y/8
Rapid solution [src]
       13   7*re(y)   7*I*im(y)
x1 = - -- + ------- + ---------
8       8          8    
$$x_{1} = \frac{7 \operatorname{re}{\left(y\right)}}{8} + \frac{7 i \operatorname{im}{\left(y\right)}}{8} - \frac{13}{8}$$
x1 = 7*re(y)/8 + 7*i*im(y)/8 - 13/8
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