Question

(26 - 3 x ): 5 +71=75

5^x+1 =125

Answer 1

\(\left(26-3x\right):5+71=75\)

\(\left(26-3x\right):5=4\)

\(26-3x=20\)

\(3x=6\)

\(x=2\)

\(5^{x+1}=125\)

\(5^{x-1}=5^3\)

\(\Rightarrow x-1=3\)

\(\Rightarrow x=4\)

Answer 2

\(\left(26-3x\right):5+71=75\)

\(\Rightarrow\left(26-3x\right)=\left(75-71\right).5\)

\(\Rightarrow26-3x=20\)

\(\Rightarrow x=2\)

Answer 3

\(\left(26-3x\right):5+71=75\)

\(\left(26-3x\right):5=4\)

\(26-3x=20\)

\(3x=6\)

\(x=2\)

\(5^{x+1}=125\)

\(5^{x-1}=5^3\)

\(\Rightarrow x-1=3\)

\(\Rightarrow x=4\)

Answer 4

a) (26 - 3x) : 5 + 71 = 75

(26-3x) : 5 = 4

26 - 3x = 20

3x = 6

x = 2

b) 5^x+1=125

5^x+1 = 5³

=> x + 1 = 3

x = 2