Question

Help pls. cant figure it out.

Answer 1

a=2

4*2=8+1=9/////2+7=9
both of the answers are 9, so a=2

Answer 2

`\longrightarrow{\green{a\:=\:2}}`

`\large\mathfrak{{\pmb{\underline{\purple{Step-by-step\:explanation}}{\purple{:}}}}}`

➡
`\:4a + 1 = a + 7`

Combining like terms, we have

➡
`\:4a - a = 7 - 1`

➡
`\:3a = 6`

➡
`\:a = (6)/(3)`

➡
`\:a = 2`

`\large\mathfrak{{\pmb{\underline{\blue{To\:verify}}{\blue{:}}}}}`

➪
`\: 4 * 2 + 1 = 2 + 7`

➪
`\: 8 + 1 = 9`

➪
`\: 9 = 9`

➪
`\: L.H.S.=R. H. S`

Hence verified.

`\red{\large\qquad \qquad \underline{ \pmb{{ \mathbb{ \maltese \: \: Mystique35}}}}}`