The equation is: (x + 12) × 0.8 = 42-x

The equation is: (x + 12) × 0.8 = 42-x


1.8x=32.4
x=18



1 / 4 * x + 2 / 7 * (98-x) = 26. Solve this equation step by step,


1/4*x+2/7*(98-x)=26
1/4x+28-2/7x=26
2/7x-1/4x=28-26
1/28x=2
x=56



According to the number of series of the following equations and solve. X 2 times more than 3.6 0.8