Solve for a- 2 a -4-5 a -4-14A- 0B- -2C- -1D- -3

The correct option is B 2 Given 2(a + 4) + 5(a + 4) = 14 ⇒ 2a +8 +5a +20 = 14 [rearranging the terms] ⇒ 2a + 5a +8 +20 = 14 ⇒ 7a + 28 = 14 ⇒ 7a = 14 ...

259

You visited us 259 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard VI

Mathematics

Solving Equations ax = b and (x/a) = b by Rearranging Terms

Solve for a: ...

Question

Solve for $a$ : $2 (a + 4) + 5 (a + 4) = 14$

No worries! We‘ve got your back. Try BYJU‘S free classes today!

-2

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

-1

No worries! We‘ve got your back. Try BYJU‘S free classes today!

-3

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B
-2

Given $2 (a + 4) + 5 (a + 4) = 14$

$\Rightarrow 2 a + 8 + 5 a + 20 = 14$

[rearranging the terms]

$\Rightarrow 2 a + 5 a + 8 + 20 = 14$

$\Rightarrow 7 a + 28 = 14$

$\Rightarrow 7 a = 14 - 28$

$\Rightarrow 7 a = - 14$

[dividing both terms by 7]

$\frac{7 a}{7} = a = \frac{- 14}{7} = - 2$

$\Rightarrow a = - 2$

Suggest Corrections

Similar questions

Solve for $a$ : $3 (a + 4) + 5 (a + 2) = 14$

Solve the following

1. -5(a-3)-2(a+5)=7-9a

2. m/7+1/3= m/6+5/4

3. 2a/3-4/5=-3/4+1

$Solve the following equation for x .$
$\frac{5 x - 4}{6} = 2 + \frac{3 x}{2}$

Q. Solve the given equation for s:

\frac{s}{3} + 4 = 5

Q. Solve the equations using elimination method:

5 a + 8 b = 9

and

2 a + 3 b = 4

Join BYJU'S Learning Program

Solve for a: 2(a+4)+5(a+4)=14

The correct option is B -2 Given 2(a+4)+5(a+4)=14 ⇒2a+8+5a+20=14 [rearranging the terms] ⇒2a+5a+8+20=14 ⇒7a+28=14 ⇒7a=14−28 ⇒7a=−14 [dividing both terms by 7] 7a7=a=−147=−2 ⇒a=−2

Solve for $a$ : $2 (a + 4) + 5 (a + 4) = 14$