Question

2x - 3y =26 3x – 4.5y =39 solve for x

Answer 1

`x=13,\:y=0`

Explanation:

Isolate x for 2x-3y=26:
`x=(26+3y)/(2)`

`\mathrm{Substitute\:}x=(26+3y)/(2)`

`\begin{bmatrix}3\cdot (26+3y)/(2)-4.6y=39\end{bmatrix}`

`Simplify`

`\begin{bmatrix}39-0.1y=39\end{bmatrix}`

Isolate y for 39-0.1y=39: y=0

`\mathrm{For\:}x=(26+3y)/(2)`

`\mathrm{Substitute\:}y=0`

`x=(26+3\cdot \:0)/(2)`

`(26+3*0)/(2)=13`

`x=13`

`\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}`

`x=13,\:y=0`

Answer 2

ANSWER:9

Explanation: