x+(x*1.4.70)=142289.7

Solution for x+(x*1.4.70)=142289.7 equation:

x+(x*1.4.70)=142289.7

We move all terms to the left:

x+(x*1.4.70)-(142289.7)=0

We add all the numbers together, and all the variables

x+(+x*1.4.70)-(142289.7)=0

We add all the numbers together, and all the variables

x+(+x*1.4.70)-142289.7=0

We get rid of parentheses

x+x*1.4.70-142289.7=0

Wy multiply elements

x^2+x-142289.7=0

a = 1; b = 1; c = -142289.7;
Δ = b2-4ac
Δ = 12-4·1·(-142289.7)
Δ = 569159.8
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(1)-\sqrt{569159.8}}{2*1}=\frac{-1-\sqrt{569159.8}}{2}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(1)+\sqrt{569159.8}}{2*1}=\frac{-1+\sqrt{569159.8}}{2}
$