Question

18. Solve: -10(2x + 1) + 3(4 - x) = 71
A. x = 69
B. x = -3
C. x = 2.9
D. x = 3
19. Solve: 4x - 19 = 7x + 2
A. x = 7
B. x = -1.55
C. no solution
D. x = -7
20. Solve: 14x + 10 - 8x = x - 20
A. x = 6
B. x = -6
C. no solution
D. x = 4

Answer 1

18. multiply in the -10 and 3 simplify and solve for x
-20x-10 + 12 - 3x= 71
-23x +2 = 71
-23x = 69
x = -3

19. simplify and solve for x
3x = -21
x=-7

20.simplify and solve for x
5x = -30
x = -6

Answer 2

thank you i suck at math

Answer 3

np glad to help