Question

solve the equation
use addition or subtraction to solve
① ( a - 6 = 13 )
② ( -3 = z - 8 )
③ ( -14 = k + 6 )
④ ( x + 4 = -14 )
⑤ ( c - 7.6 = -4 )
⑥ ( -10.1 = w + 5.3 )

Explanation:

Step1: Isolate $a$ by adding 6

$a - 6 + 6 = 13 + 6$

Step2: Simplify to find $a$

$a = 19$

Step1: Isolate $z$ by adding 8

$-3 + 8 = z - 8 + 8$

Step2: Simplify to find $z$

$z = 5$

Step1: Isolate $k$ by subtracting 6

$-14 - 6 = k + 6 - 6$

Step2: Simplify to find $k$

$k = -20$

Step1: Isolate $x$ by subtracting 4

$x + 4 - 4 = -14 - 4$

Step2: Simplify to find $x$

$x = -18$

Step1: Isolate $c$ by adding 7.6

$c - 7.6 + 7.6 = -4 + 7.6$

Step2: Simplify to find $c$

$c = 3.6$

Step1: Isolate $w$ by subtracting 5.3

$-10.1 - 5.3 = w + 5.3 - 5.3$

Step2: Simplify to find $w$

$w = -15.4$

Answer:

1. $a = 19$
2. $z = 5$
3. $k = -20$
4. $x = -18$
5. $c = 3.6$
6. $w = -15.4$