Answer:
x = 4
Step-by-step explanation:
You can eliminate the y-variables by adding 4 times the second equation to 3 times the first:
3(5x +4y) +4(2x -3y) = 3(8) +4(17)
15x +12y +8x -12y = 24 +68 . . . . eliminate parentheses
23x = 92 . . . . . . . . . collect terms
x = 92/23 = 4 . . . . . divide by 23
The x-value of the solution is 4.
