Question

What value of a makes the equation true? 9a+2=4a-18

Answer 1

$$\begin{aligned}

9a + 2 &= 4a - 18 \\

9a &= 4a - 20 \\

5a &= -20 \\

a &= -4

\end{aligned}$$

Therefore, the value of $a$ that makes the equation true is $a = -

Answer 2

Answer: a = -4

Explanation:

In order to find the value of a, isolate it.

Given equation:

`\star\quad\sf{9a+2=4a-18}`

Subtract 4a from both sides:

`\star\quad\sf{9a-4a=-18-2}`

`\star\quad\sf{5a=-20}`

Divide both sides by 5:

`\star\quad\sf{a=-4}`

Therefore, a = -4.