4x+1= 32 হলে x এর মান কত?

<img style="width: 31px;" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB8AAAArCAYAAACARVOCAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADESURBVFhH7ZfBDcMwCEWZywMxj6fxMh6GhtpuFfdQAVG+qvIkDk4Oz8ZBARIgKYfwS/IutZAQrWBp840Hg3yI+W

<img style="width: 57px;" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADkAAAA6CAYAAAAKjPErAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADoSURBVGhD7djRDcMgDIRhz8VAzMM0LMMwblyiNGlf8SFd75eQmsdPJKGx+R8kJEtCsiQkS0KyJCRLQrIkJEtC5t

<img style="width: 31px;" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB8AAAArCAYAAACARVOCAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADESURBVFhH7ZfBDcMwCEWZywMxj6fxMh6GhtpuFfdQAVG+qvIkDk4Oz8ZBARIgKYfwS/IutZAQrWBp840Hg3yI+W

<img style="width: 28px;" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABwAAAAyCAYAAABPq7vSAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADMSURBVFhH7ZbbDcUgCECZy4Gcx2lcxmG4pVr7yP0QRNI0nISP2o9ToEQAjXGhOi5Ux4XqvFyYIwLAJSLm9moUhr