Question

2.) Solve each equation by subtracting a number from each side to isolate x.
a.) x+5= 12
b.) 15= x+6
c.) 19= 7+x

Answer 1

a) x+5= 12

x + 5 - 5 = 12 - 5
x = 12 - 5
x = 7

b) 15 + x + 6
15 - 6 = x + 6 - 6
15 - 6 = x
9 = x

c) 19 = 7 + x
19 - 7 = 7 - 7 + x
19 - 7 = x
12 = x

Answer 2

Hey there, Lets solve this problem together. 

Equation (A) = $x+5= 12$ 

$x + 5 - 5 = 12 - 5 x = 12 - 5 x = 7$ 

Equation (B) = $15= x+6$ 

$15 - 6 = x + 6 - 6 15 - 6 = x 9 = x$ 

Equation (C) = $19= 7+x$ 

$19 - 7 = 7 - 7 + x 19 - 7 = x 12 = x$