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3 years ago

Help pls. cant figure it out.

Mathematics

2 answers:

const2013 [10]3 years ago

8 0

A=2

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

Natali [406]3 years ago

8 0

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

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

➡ $\:4a + 1 = a + 7$

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.

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

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