Solve 2*0.2*10/1000=1*0.0025+1*0.1x/1000

$$2 \cdot 0.2 \times \frac{ 10 }{ 1000 } = 1 \times 0.0025+1 \cdot 0.1 \frac{ x }{ 1000 }$$

Solve for x

$$x=15$$

Steps for Solving Linear Equation

Multiply both sides of the equation by 1000.

$$2\times 0.2\times 10=1000\times 0.0025+1\times 0.1x$$

Multiply 2 and 0.2 to get 0.4.

$$0.4\times 10=1000\times 0.0025+1\times 0.1x$$

Multiply 0.4 and 10 to get 4.

$$4=1000\times 0.0025+1\times 0.1x$$

Multiply 1000 and 0.0025 to get 2.5.

$$4=2.5+1\times 0.1x$$

Multiply 1 and 0.1 to get 0.1.

$$4=2.5+0.1x$$

Swap sides so that all variable terms are on the left hand side.

$$2.5+0.1x=4$$

Subtract 2.5 from both sides.

$$0.1x=4-2.5$$

Subtract 2.5 from 4 to get 1.5.

$$0.1x=1.5$$

Divide both sides by 0.1.

$$x=\frac{1.5}{0.1}$$

Expand \frac{1.5}{0.1} by multiplying both numerator and the denominator by 10. Anything divided by one gives itself.

$$x=15$$