Solve a+b=2^2-b

$$a + b = 2 ^ { 2 } - b$$

Solve for a

$$a=4-2b$$

Solution Steps

Calculate 2 to the power of 2 and get 4.

$$a+b=4-b$$

Subtract b from both sides.

$$a=4-b-b$$

Combine -b and -b to get -2b.

$$a=4-2b$$

Solve for b

$$b=-\frac{a}{2}+2$$

Steps for Solving Linear Equation

Calculate 2 to the power of 2 and get 4.

$$a+b=4-b$$

Add b to both sides.

$$a+b+b=4$$

Combine b and b to get 2b.

$$a+2b=4$$

Subtract a from both sides.

$$2b=4-a$$

Divide both sides by 2.

$$\frac{2b}{2}=\frac{4-a}{2}$$

Dividing by 2 undoes the multiplication by 2.

$$b=\frac{4-a}{2}$$

Divide 4-a by 2.

$$b=-\frac{a}{2}+2$$