Use the Five-Step Strategy for Solving Word Problems to Find $y _ { 1 } = x _ { 1 } y _ { 2 } = 7 + x , y _ { 3 } = 3 ( x - 8 ) + 10 x$

Multiple Choice

Use the five-step strategy for solving word problems to find the number or numbers described in the following
exercise.
- $y _ { 1 } = x _ { 1 } y _ { 2 } = 7 + x , y _ { 3 } = 3 ( x - 8 ) + 10 x$ , and the sum of 8 times $y _ { 1 }$ and 4 times $y _ { 2 }$ equals $y _ { 3 }$ .

A) $\{ 52 \}$
B) $\{ 15 \}$
C) $\{ - 52 \}$
D) $\{ - 15 \}$