Question

`\sf -2a-(-9) = 23`

Answer 1

a = -7

Explanation:

-2a -(-9) = 23

-2a + 9 = 23

-2a +9 -9 = 23 -9

-2a /-2 = 14/-2

a = -7

Therefore a is -7.

Answer 2

a = -7

Explanation:

The given equation is,

→ -2a-(-9) = 23

Then the value of a will be,

→ -2a-(-9) = 23

→ -2a + 9 = 23

→ -2a = 23 - 9

→ a = 14/-2

→ [ a = -7 ]

Hence, the value of a is -7.