If it's not what You are looking for type in the equation solver your own equation and let us solve it.
r-42=-19
We simplify the equation to the form, which is simple to understand
r-42=-19
We move all terms containing r to the left and all other terms to the right.
+1r=-19+42
We simplify left and right side of the equation.
+1r=+23
We divide both sides of the equation by 1 to get r.
r=23
| 6+4(2n+3)-n= | | 2v^2+6v+61=(v+7) | | 21x^2-28x-14=98 | | 4x+9x=26 | | 3+3(2n+4)-n= | | 5u^2-6=-13u | | 38+37=9w+(-6w) | | 2w^2=3w+2 | | 4x^2+20x=-25 | | 5+x=40 | | 7(x+5)+8= | | 6(-4x-4)=-96 | | 30w-25=9w^2 | | 2x+6-x=23 | | 14h=28 | | 7x-15-6-x=3 | | T^2+12t+27=0 | | 7x-15-6x=3 | | 3x^2-5=2x | | 7p-p=102 | | 5u^2=-7u-2 | | 2m+5m=56 | | 24x^2+32x=0 | | 0=x^2-6x-7 | | -(3y+1)-(-2y-3)=0 | | 6(x-2)=6(x+2) | | 0=-x^2-12x-36 | | w^2-4w-12=0 | | 100=5x+25 | | -4(2t-5)+6t=3t-7 | | (3-v)(5v-8)=0 | | 100=5x+x^2 |