# What is y equal to when x=-3 when y=2x-1?

Mar 26, 2017

$y = - 7$

#### Explanation:

Simply substitute the value of $x$ into the equation.

$y = 2 x - 1$

$y = 2 \cdot \left(- 3\right) - 1$

$y = - 6 - 1$

$y = - 7$

Mar 26, 2017

$y = - 7$

#### Explanation:

We have $y = 2 x - 1$

And $x = - 3$

Substituting the value of $x$ in the expression for $y$,

$y = 2 \left(- 3\right) - 1$

$\implies y = - 6 - 1$

$\implies y = - 7$