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

➡$\:4a - a = 7 - 1$

➡$\:3a = 6$

➡$\:a = \frac{6}{3}$

➡$\:a = 2$

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

➪ $\: 4 \times 2 + 1 = 2 + 7$

➪ $\: 8 + 1 = 9$

➪ $\: 9 = 9$

➪ $\: L.H.S.=R. H. S$

Hence verified.

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