If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-7(5+6b)4b=-4b+7
We move all terms to the left:
-7(5+6b)4b-(-4b+7)=0
We add all the numbers together, and all the variables
-7(6b+5)4b-(-4b+7)=0
We multiply parentheses
-168b^2-140b-(-4b+7)=0
We get rid of parentheses
-168b^2-140b+4b-7=0
We add all the numbers together, and all the variables
-168b^2-136b-7=0
a = -168; b = -136; c = -7;
Δ = b2-4ac
Δ = -1362-4·(-168)·(-7)
Δ = 13792
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$b_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$b_{2}=\frac{-b+\sqrt{\Delta}}{2a}$
The end solution:
$\sqrt{\Delta}=\sqrt{13792}=\sqrt{16*862}=\sqrt{16}*\sqrt{862}=4\sqrt{862}$$b_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-136)-4\sqrt{862}}{2*-168}=\frac{136-4\sqrt{862}}{-336} $$b_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-136)+4\sqrt{862}}{2*-168}=\frac{136+4\sqrt{862}}{-336} $
| 3x42=3x(40+2) | | 1+1.8x=2+.75× | | -6k+4=-16-15k | | 140=10(r-4) | | 6(x)+238=3(x)+178 | | 4r–7=5 | | 2.25(x-4.2}=x+3.28 | | 4+8(x-4)=9-9(x-5) | | y+7+3y-10=180 | | 6*147=6x(40+7) | | 3x-2+4x-13=180 | | -16k+4=-16–15k | | y+24-9y=-8 | | 1/2(x-8)=14x+2 | | -155-2x=-14x+145 | | 6x147=6x(40+7) | | 5(x+1)-2x=2(3+x | | -155-2x=-14x+115 | | 1+9(x-2)=7-5(x-2) | | .25z+8=10 | | 5x-2=-20 | | 3x+35+2x+45=180 | | 0.5w-6=w-7 | | 4.5/2x-1=7.8 | | 19-10b=-17-7b+3 | | 6x147=6x(40+7)= | | X-148=68-11x | | x2−2x−15x−10=0 | | 14x-29=11+12x | | 175+8x=425 | | 8x-7=7x-1+x-6 | | 8+|4x-7|=17 |