Answer:
4 + 36x
Step-by-step explanation:
4 * (1 + 9x)
(4 * 1) + (4 * 9x) = 4 + 36x
4 * 1 = 4
4 * 9x = 36x
x=-0.11 or -1/9
4(1+9x)
Distribute 4
4+36x
isolate x
36x=-4
isolate x by dividing both sides by 36
x=-0.11
